JPH0637270B2 - Elevator control operation device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an elevator control operation device that is optimal for control operation of an elevator during earthquakes and strong winds.

[Conventional technology]

Conventionally, the sensing device provided in this type of control operation device,
It was configured to detect vibrations at the time of an earthquake and issue an alarm and control signal.

The acceleration-type seismic detector used in this type of sensing device has a structure that senses vibration acceleration of 80 Gal or more, so if the vibration of the building is large like the vibration during strong winds but the acceleration is low, This cannot be detected. On the other hand, if the seismic detector is set to detect low-acceleration vibration, it is inconvenient because it operates by detecting vibration that does not damage the building.

Therefore, as a method capable of detecting both an earthquake and a strong wind, a method of detecting the occurrence of a strong wind by an anemometer installed on the roof of a building has been proposed. However, this anemometer detection method does not take into consideration the vibration difference of the building depending on the wind direction, and is not generally appropriate.

On the other hand, it has been clarified that the conventional accelerometer-type seismic detector does not always operate properly for detecting vibration of a high-rise building against an earthquake.

That is, when a high-rise building is damaged by an earthquake, the natural period of the building resonates with the predominant period of earthquake motion, but even if such an extremely large oscillation occurs, the vibration acceleration Due to its low value, conventional accelerometer-type seismic detectors hardly sense it. If you set the sensitivity of the acceleration type seismic detector so that it can detect such vibrations as well, as in the case of the detection setting for strong winds, it will occur due to daily disturbance that does not cause any damage. It also detects acceleration.

On the contrary, most of the examples detected by the conventional acceleration type seismic detectors are occurrences of ground motions with a short dominant period of small-scale earthquakes close to the epicenter. In such an earthquake motion, the skyscraper does not swing at all and, for example, the elevator is not damaged.
Nevertheless, because the seismic detector senses, the elevators are stopped and traffic in the building is congested. Regarding this point, Hitachi commentary VOL67, NO6,
It is also pointed out in P65-70 (Onoda et al.).

The applicant of the present invention has previously filed a patent application 5
In 9-0492551, we filed an application for "wave energy type seismic detector" which introduced a completely new technical idea. The “wave energy type seismic detector” is a theoretically excellent method that uses a certain wave energy coefficient proportional to the wave energy (see the above Hitachi review), but the circuit is complicated and the components are uniaxially arranged. Even if the characteristics change, there is a problem that an alarm or a control command is erroneously generated.

In super high-rise buildings, almost all elevators are controlled by a control signal of this type of sensing device, so for example, a temporary change in the characteristics of parts causes a control signal to be issued to control elevator operation. Basically, it is necessary to avoid congestion in the goods.

In order to solve such a problem, the applicant of the present application first
Application for "vibration sensing device for control operation" in Japanese Patent Application No. 61-20287, and "small vibration sensor" used for "vibration sensing device for control operation" in Japanese Patent Application No. 61-21191
Applied for.

The above-mentioned "vibration sensing device for control operation" will be described below as a related art of the present invention.

FIG. 4 is a block diagram showing the configuration of the vibration sensing device for control operation, and 1 is a vibration sensor attached to the upper end of the building, that is, an acceleration sensor for detecting the acceleration of vibration at the upper end of the building. is there. 2 is this acceleration sensor 1
Is a data processing unit that processes acceleration data of tremors, determines the risk of tremors, and generates control signals based on the data.

Further, reference numerals 3, 4 and 5 are relay coils which are energized by a signal current supplied from the data processing unit 2, and the relay coils 3, 4 and 5 are energized in order according to the degree of danger. Has been done. Reference numerals 6, 7, and 8 are relay contacts corresponding to the relay coils 3, 4, and 5, and are configured to close when the corresponding relay coils 3, 4, and 5 are energized.

Reference numeral 9 is a control operation circuit that operates by opening and closing the relay described above, 10 is an alarm device that operates when the data processing unit 2 determines that the vibration is greater than a preset value, and 11 is attached to the upper layer of the building. It is a small vibration sensor that closes the relay circuit by the contact 12 by sensing even a slight vibration in the frequency region near the natural vibration of the object.

In the vibration-sensing device for control operation configured as described above, the acceleration sensor 1 detects the acceleration of vibration and detects the minute vibration sensor 11
Detects a slight vibration of the building, the control operation circuit 9 performs the corresponding operation in accordance with the degree of vibration risk detected by the acceleration sensor 1. Even if the data processing unit 2 malfunctions and an output is generated, if the micro vibration sensor 11 does not detect the vibration of the building in this state, the contact 12
Is kept open, and the malfunction of the control operation circuit 9 can be avoided.

By the way, in this type of wave energy type earthquake detector,
When a strong vibration occurs in a building during strong winds, an alarm or control signal is generated as in the case of an earthquake. This is a major feature of the wave energy type seismic detector, but since the vibration due to strong winds increases slowly and continues over a long period of time, it is thought that the vibration will increase rapidly like an earthquake and end in a short time. It is not appropriate to directly apply the configured control operation circuit during an earthquake. Therefore, it is necessary to switch the control operation circuit to the control operation during strong winds, which performs a control operation suitable for strong winds.

For this purpose, it is required to determine whether the cause of the building vibration is an earthquake or a strong wind. Along with this, the applicant of the present application previously applied for a method of discriminating whether the vibration generated in the building is due to an earthquake or due to a strong wind. In this method, a vibration of a level lower than the level at which a wave energy type seismic detector generates an alarm or control signal, for example, 0.1 to 5 Kine · cm (Kine is a unit of vibration velocity, c
If a vibration of (m / sec) is detected for a predetermined time, for example, 10 minutes or more, it is determined that the wind is strong and a strong wind signal is generated. When this strong wind signal is generated, the control operation circuit is switched to the strong wind control operation circuit, and the strong wind control operation circuit performs the strong wind control operation suitable for strong wind.

[Problems to be solved by the invention]

The wave energy type seismic detector proposed by the applicant of the present invention has the feature that all the treatments can be performed at the upper end of the building, but the operation is performed by switching to the strong wind control operation circuit. Even if an earthquake occurs while the wind turbine is operating, there is a problem that the control operation under strong wind will be continued.

An object of the present invention is to accurately determine whether to perform seismic control operation or strong wind control operation when a building vibrates, and an earthquake occurs when strong wind control operation is performed. In this case, it is an object of the present invention to provide an elevator control operation device that can accurately determine this and quickly switch to control operation during an earthquake.

[Means for solving problems]

The problem is that the vibration sensor attached to the upper portion of the building, the data processing unit that generates a control operation signal according to the vibration detected by the upper vibration sensor, and the control operation from this data processing unit. Relay means that operates in response to a signal, a control operation circuit that performs a control operation operation by the operation of the relay means, a lower part vibration sensor attached to the lower part of the building, and connected to the relay means,
First closed circuit forming means for closing the lower vibration sensor when the lower vibration sensor operates and holding the relay means in an operable state; and closing when the lower vibration sensor is inoperative. Second closed circuit forming means,
The second closed circuit forming means is closed, and the data processing section is activated when it detects a vibration of a predetermined value or more for a predetermined time, and includes switching means for switching the control operation circuit to control operation under strong wind. This is achieved by a configuration including means for stopping the control operation under strong wind when the second closed circuit forming means is opened while the control operation is switched over under strong wind by the switching means.

[Action]

When a strong wind occurs, the middle part and the upper part of the building shake, and the lower end of the building does not shake. On the other hand, when an earthquake occurs, generally, the upper part of the building and the lower end of the building both shake. In addition, the shaking of a building during strong winds is usually longer than when an earthquake occurs until the shaking ends. Therefore, in a strong wind, even if the vibration sensor in the upper part of the building detects a vibration of a predetermined value or more, the vibration sensor in the lower part of the building does not detect the vibration. Therefore, when a strong wind is generated and the vibration sensor in the upper part of the building detects a vibration of a predetermined value or more for a predetermined time, the second closed circuit forming means, the relay means and the switching means operate, and as a result, the control operation circuit is operated. Control operation is performed in strong winds.

On the other hand, when an earthquake or the like occurs during the control operation under strong wind and the vibration is equal to or more than a predetermined value, the lower vibration sensor detects this vibration and operates the first closed circuit forming means to operate the second closed circuit. Since the circuit forming means is made inoperative, the control operation during strong wind can be switched to the control operation during earthquake.

In this way, when a building vibrates, it is possible to accurately determine whether to perform control operation during earthquakes or control operation during strong winds, and when an earthquake occurs during control operation during strong winds. It is possible to quickly switch to control operation during an earthquake.

〔Example〕

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention,
FIG. 2 is a circuit diagram showing a configuration of a failure detection circuit provided in the embodiment of the present invention shown in FIG. 1, and FIG. 3 is a block diagram showing a configuration of another embodiment of the present invention.

As shown in FIG. 1, in an embodiment of the present invention, instead of the minute vibration sensor 11 of the vibration sensing device for control operation of FIG.
A microvibration sensor 14 is provided at the lower end of the building. The contact point 15 of the microvibration sensor 14 is a first closed circuit that closes the circuit of the relay formed between the relay coils 3, 4, 5 whose one ends are connected to each other and the ground by the operation of the microvibration sensor 14. It constitutes the forming means.

Further, the contact 15, the resistor 13, and the contact 16 are connected in series across the contact 15 to form a relay circuit. The circuit of this relay is a closed circuit with a contact point 16 that closes when the microvibration sensor 14 is inactive and a contact point 20 that closes when an electrical microvibration sensor circuit 19 described later operates. The above-mentioned contact 20 which is closed by the operation of the electric micro-vibration sensing circuit 19 when the micro-vibration sensor 14 is not operating constitutes a second closed circuit forming means for closing the relay circuit.

A strong wind control operation command circuit 17 is connected between the connection ends of the relay coils 3, 4, 5 and the terminals of the resistor 13 and the contact 16, and the strong wind control operation command circuit 17 controls the control. The driving circuit 9 is connected.

On the other hand, the output terminal of the acceleration sensor 1 is connected to the electrical micro-vibration sensing circuit 19, and the contact 20 is delayed by a predetermined time after the electrical micro-vibration sensing circuit 19 is activated.
Is configured to close.

Further, a failure detection circuit 18 is provided, and the data processing unit 2, the electrical microvibration sensing circuit 19 and the microvibration sensor 14 are connected to the input terminal of the failure detection circuit 18, and the output terminal of the failure detection circuit 18 is connected. An alarm device 10 is connected to the.

FIG. 2 is a circuit diagram showing the configuration of the failure detection circuit 18,
The data processing unit 2 is connected to the input terminal of the buffer amplifier 31, and the inverter 3 is connected to the output terminal of the buffer amplifier 31.
4 input terminals are connected, and the output terminal of the inverter 34 is connected to one input terminal of the AND circuit 36. Further, the output terminal of the electric micro-vibration sensing circuit 19 is connected to the input terminal of the buffer amplifier 32, and the buffer amplifier 2
Is connected to one input terminal of the OR circuit 35, and the output terminal of the OR circuit 35 is connected to the other input terminal of the AND circuit 36. Furthermore, the micro vibration sensor 1
The output terminal of the buffer amplifier 33 is connected to the input terminal of the buffer amplifier 33, and the output terminal of the buffer amplifier 33 is connected to the other input terminal of the OR circuit 35. The data processing unit 2
The output terminal of the acceleration sensor 1 is connected to the input terminal of the electric microvibration sensor 19, and the alarm device 10 is connected to the output terminal of the AND circuit 36.

Here, the buffer amplifiers 31, 32, 33, the inverter 34, the OR circuit 35, and the AND circuit 36 constitute the failure detection circuit 18.

The operation of the embodiment of the present invention is as follows.

When the building is not vibrating, neither the acceleration sensor 1 nor the micro-vibration sensor 14 outputs an output signal.
Since the logical value of the signal at the output terminal of the R circuit 35 is “0”, the logical value of the signal at the output terminal of the AND circuit 36 is “0”.
The alarm device 10 does not operate.

For example, even if a false impact is given to the acceleration sensor 1 even if the building is not vibrating and the data processing unit 2 determines that this is a high-risk vibration and outputs an output signal, the inverter 34
Since the logical value of the signal at the output terminal of the AND circuit 36 is "0" and the logical value of the signal at the output terminal of the AND circuit 36 is "0", the alarm device 1
0 will not work in this case.

In this case, the electric micro-vibration sensing circuit 19 operates by detecting an erroneous impact of the acceleration sensor 1, and the contact 20 should be closed after a predetermined delay time, but the acceleration sensor due to the erroneous impact within the predetermined delay time. Since it is estimated that the output of 1 almost disappears, the contact 20 is not actually closed.

When an earthquake occurs, the acceleration sensor 1 and the micro vibration sensor 1
4 senses this and outputs an output signal. The actuation of the microvibration sensor 14 causes the contact 15 to close and the contact 16 to open. The output signal of the acceleration sensor 1 is detected, an operating current flows through the electric microvibration sensing circuit 19, and the contact 20 is closed after a predetermined delay time, but the contact 16 is opened before that, so the resistance 13 No excitation current flows through.

In this case, the output signal of the acceleration sensor 1 is processed by the data processing unit 2, and a detection current flows through any of the relay coils 3, 4 and 5 depending on the degree of vibration risk. Due to the current flowing through the relay coils 3, 4, 5, the corresponding ones of the contacts 6, 7, 8 are closed according to the degree of seismic vibration risk, and the control operation circuit 9 causes the elevator to move. A control operation is performed according to. In this control operation, the logical value of the signal at the output terminal of the inverter 34 in FIG. 2 becomes "0", so the alarm device 10 does not operate.

When a strong wind occurs, the acceleration sensor 1 provided at the upper end of the building emits an output signal, and the microvibration sensor 14 provided at the lower end of the building does not produce an output signal. An operating current flows through the electrical microvibration sensing circuit 19 upon detection of the output signal of the acceleration sensor 1, and the contact 20 is closed after a predetermined delay time. To this end, a resistor 1
Since the excitation current flows through 3, the control operation command circuit 1 for strong wind
7 is energized, and the elevator is controlled in strong winds.

When an earthquake occurs while the elevator is under strong wind control operation, the microvibration sensor 14 operates to turn on the contact 15 and turn off the contact 16, so that the resistance 13 is excited. The current stops flowing, and the control operation command circuit 17 is deenergized during strong winds. On the other hand, the output signal of the acceleration sensor 1 is processed by the data processing unit 2, and the control operation of the elevator is performed by the control operation circuit 9 according to the degree of risk of vibration.

In addition, since the logical value of the signal at the output terminal of the inverter 34 in FIG.
The alarm 10 does not operate.

If a vibration occurs in the building, but the data processing unit 2 is malfunctioning due to a failure, the logical value of the signal at the output terminal of the inverter 34 becomes "1", and the alarm device 10 is activated. If the acceleration sensor 1 is malfunctioning and is inoperative, the output signal of the microvibration sensor 14 is input to the AND circuit 36 and the inverter 3
The logical value of the signal at the output terminal of 4 becomes "1", and the alarm device 1
0 works.

As described above, according to the embodiment of the present invention, it is discriminated whether the vibration of the building is caused by the earthquake or the strong wind, and the elevator control operation corresponding to each is given priority to the vibration caused by the earthquake. The configuration is also a simple one in which only a few parts are added to the conventionally proposed device, which prevents malfunction of the data processing unit 2 and
The failure can be detected.

The configuration shown in FIG. 3 is another embodiment of the present invention, and the electrical micro-vibration sensing circuit 19 of the embodiment shown in FIG.
Instead of this, a microvibration sensor 11 is provided. The micro-vibration sensor 11 is provided at a position at a certain distance from the acceleration sensor 1 at the upper end of the building. Further, instead of the contact 20 of FIG. 1, a normal contact 12 that does not perform a delay operation is provided.

With this configuration, for example, even when the acceleration sensor 1 is impacted, the micro-vibration sensor 11 operates without being affected by the impact, and the contact 12 is closed during a strong wind to control the control operation circuit 9 during a strong wind. Can be done.

〔The invention's effect〕

As described above, according to the present invention, when a building vibrates, it is possible to accurately determine whether to perform control operation during earthquake or control operation during strong wind, and when control operation during strong wind is performed. When an earthquake occurs, it is possible to quickly switch to the control operation during an earthquake.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention, FIG. 2 is a circuit diagram showing a configuration of a failure detection circuit provided in the embodiment shown in FIG. 1, and FIG. FIG. 4 is a block diagram showing a configuration of the embodiment of FIG. 4, and FIG. 4 is a block diagram showing a configuration of a conventionally proposed vibration sensing device for control operation. 1 ... Acceleration sensor (vibration sensor), 2 ... Data processing unit, 3, 4, 5 ... Relay coil, 6, 7, 8 ... Relay contact, 9 ... Control operation circuit, 10 ... Alarm device, 11 ...
Micro vibration sensor, 14 Micro vibration sensor, 17
Control command circuit for strong wind control, 18 ... Failure detection circuit, 19
...... Electrical micro-vibration sensing circuit, 31, 32, 33 ...... Buffer amplifier, 34 ...... Inverter, 35 ...... OR circuit, 36 ...... AND circuit.

Claims (1)

[Claims] 1. A vibration sensor attached to an upper portion of a building, a data processing unit for generating a control operation signal in accordance with vibration detected by the upper vibration sensor, and a control operation from the data processing unit. Relay means that operates in response to a signal, a control operation circuit that performs a control operation operation by the operation of the relay means, a lower part vibration sensor attached to the lower part of the building, and connected to the relay means, First closed circuit forming means for closing the lower vibration sensor when the lower vibration sensor operates and holding the relay means in an operable state; and closing when the lower vibration sensor is inoperative. The second closed circuit forming means and the second closed circuit forming means are actuated when the second closed circuit forming means is closed and the data processing unit detects a vibration of a predetermined value or more for a predetermined time, to perform the control operation. Switching means for switching the road to control operation during strong winds, and means for stopping control operation during strong winds when the second closed circuit forming means is opened while switching to control operation during strong winds by the switching means. An elevator control operation device characterized by comprising: