JP2000172959A - Parking lot gate breaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly detect an abnormal load when the abnormal load is applied to a gate bar as a breaker, to issue an alarm, to report it to a manager, and to pick up the image of this condition in the gate breaker of a parking lot. SOLUTION: In the gate breaker in a parking lot which temporarily stops an entering or leaving vehicle at the entrance/exit gate of the parking lot, a detector which detects the load to a gate bar 1, an alarm transmitter 10 which transmits an alarm signal, and an image pickup device which is operated by the alarm device to pick up the image of the gate bar 1 or the pertinent vehicle are provided, and then, an alarm is quickly transmitted to inform the manager and an area including the pertinent vehicle or the gate bar 1 is picked up if an abnormal load is applied to the gate bar 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toll gate of a toll parking lot. In particular, the present invention relates to a device that protects a car that illegally exits by breaking a gate bar.

[0002]

2. Description of the Related Art In a general toll parking lot, a car to be parked is temporarily stopped at an entrance gate because a gate bar serving as a blocking fence for temporarily stopping the car is descending. When the car stops at the entrance gate, a parking ticket such as a magnetic recording card or a punched card is issued after entry of the parking time and the like. When the driver receives the parking ticket, the gate bar pivots upward about the mounting axis of the support member, thereby opening the gate bar and entering the parking lot. When leaving the car, at the exit gate, the gate bar is down, so stop at a predetermined position, let a predetermined fare clearing machine read the parking ticket, the predetermined fee is determined, and the parking fee is settled By doing so, the gate bar of the circuit breaker at the exit gate opens, and you can exit.

[0003]

However, in recent parking lots, a machine is often used by unmanned persons or only by an administrator to collect a fee, and there are vehicles that try to leave the parking lot without paying a fee. There is no lingering. If the fare has not been settled, the gate bar is closed, and if you try to exit the parking lot even though the gate bar is closed, the car will naturally contact the gate bar of the barrier and the gate bar will be abnormal In the worst case, the circuit breaker including the gate bar was broken. However, in recent parking lots, there are many unmanned parking lots, and even if a breaker is broken, there is no way to confirm who has broken it and when it has been broken, it remains broken, and repairs can be quickly responded. Did not. further,
I couldn't even charge a repair fee for the broken car.

[0004]

SUMMARY OF THE INVENTION At a gate of a parking lot for temporarily stopping a car entering or leaving at a doorway of a parking lot, a gate bar as a blocking fence and a support for opening and closing the gate bar are provided. It is characterized by comprising a member, a housing for disposing the support member, a detector for detecting a load applied to the gate bar, and an alarm transmitting device for issuing an alarm signal based on an output signal of the detector.

[0005] In the above gate interrupter for a parking lot, the detector is installed substantially below the gate bar mounting axis of the housing.

In the above-described parking gate interrupter, the detector increases or decreases its output in proportion to the load applied to the gate bar, and the alarm transmission device transmits a plurality of alarm signals corresponding to the output of the detector. It is characterized by.

In the above-described parking gate interrupter, the alarm signal is an alarm sound. In the above-described gate interrupter for a parking lot, the alarm transmission device is a wireless device that transmits a plurality of signals according to the output of the detector.

[0008] In the above-mentioned parking gate interrupter, at least one image pickup device activated by an alarm signal is further provided, and the image pickup device picks up an image of an area including a gate bar or a vehicle.

[0009] Further, another invention relates to a method of entering or exiting a building by using a gate bar which is a blocking fence at an entrance of a parking lot.
An alarm device for a gate breaker in a parking lot for temporarily stopping a leaving car, comprising a detector for detecting a load applied to a gate bar, and an alarm transmitting device for issuing an alarm signal based on an output signal of the detector. Features.

In the above-mentioned alarm device, the alarm signal is an alarm sound. In the above alarm device, the alarm transmitting device is a wireless device that transmits a plurality of signals according to the output of the detector. The above-mentioned alarm device further includes at least one image pickup device that is activated by an alarm signal, and the image pickup device picks up an image of a gate bar or an area including the vehicle.

[0011]

According to the above construction, when a load is applied to the gate bar, the load is applied to the gate bar in the parking gate interrupter for temporarily stopping a car entering or exiting at the entrance of the parking lot. This can be detected by the detector, and an alarm signal can be issued. For example, when leaving a parking lot, the gate bar can be opened by adjusting the fee, but if the fee is not adjusted, the gate bar is closed. However, even when the gate bar is closed, when the car that wants to exit pushes the gate bar, it is possible to detect that the gate bar is pushed and to transmit an alarm signal.

Further, according to the second aspect of the present invention, the detector is installed substantially below the gate bar mounting shaft of the housing on which the support member is provided, so that the pressing of the gate bar causes the support member to support the gate bar. As the stress generated in the housing,
Is detected. In other words, the point of contact with and pushing the gate bar is the point of action, and the mounting axis of the supporting casing is the fulcrum. Due to the principle of leverage, more stress is applied to the casing than the load that pushed the gate bar, making it easier to detect. .

Further, according to the invention of claim 3, the detector increases or decreases its output in proportion to the load applied to the gate bar, and the alarm transmitting device transmits a plurality of alarm signals according to the output of the detector. Will be able to For example, when the gate bar is simply pressed, a first-stage warning is issued. When it is pressed with a greater force, a second stage warning is issued. When the barrier including the gate bar is pressed with a force that is likely to be broken, a third-stage warning is issued. As a specific example, a bell is sounded as the first stage alarm. As a second stage alarm, a louder bell sounds. As the alarm at the third stage, it is conceivable to start imaging by the imaging device and notify the administrator.

Further, according to the invention of claim 4, the warning signal can be made a warning sound, so that when a load is applied to the gate bar, a warning sound is generated and the driver is alerted at the same time. The administrator can be notified.

Further, according to the fifth aspect of the present invention, the alarm transmitting device can be a wireless device for transmitting a plurality of signals in accordance with the output of the detector. It is possible to send a warning to a warning sound generator located in a place or a place away from the gate bar without troublesome wiring, and to send a command to start generating a warning sound. become able to.

Further, according to the invention of claim 6, at least one image pickup device operated by an alarm signal is further provided, and the image pickup device can take an image of a gate bar or an area including a corresponding vehicle. It becomes possible to identify the vehicle whose breaker has been damaged.

Further, according to the invention of claim 7, at the entrance of the parking lot, a gate bar which is a blocking fence is used.
A detector that detects the load on the gate bar and an alarm that issues an alarm signal based on the output signal of the detector for a gate breaker in a parking lot that does not have an existing alarm device for temporarily stopping the entering or leaving car. An alarm device including a transmitting device can be attached.

Further, according to the eighth aspect of the present invention, in the above-mentioned alarm device, the alarm signal can be an alarm sound, so that the present alarm device is installed in an existing gate breaker. The same operation and effect as those of the fourth aspect can be obtained.

Further, according to the ninth aspect of the present invention, in the above-mentioned alarm device, the alarm transmitting device can be a wireless device for transmitting a plurality of signals according to the output of the detector. By installing the device in the existing gate breaker, the same operation and effect as the invention of claim 5 can be obtained.

Further, according to the tenth aspect of the present invention, in the alarm device, the alarm device further includes at least one image pickup device that is activated by an alarm signal, and the image pickup device includes a gate bar or an area including the vehicle. Since an image can be taken, the same operation and effect as the invention of claim 6 can be obtained by installing this alarm device in the existing gate breaker.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The positional relationship and the configuration of a parking lot gate breaker according to one embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an external view and an internal perspective view of a gate breaker according to one embodiment of the present invention. The gate bar 1, which is a blocking fence, is linear when closed and blocks the gate over its entire length.
cm, the tip of the bent portion is configured to be lifted in parallel with the ground, and a drive motor 5 for opening and closing and a support member 8 including the reduction gear 3 are attached to a mounting shaft. 4 attached. It should be noted that the gate bar 1 may be a bent one or a straight one that is not bent. The support member 8 including the drive motor 5 and the speed reducer 3 is arranged and fixed inside the housing 2. A sensor 7 for detecting a load applied to the gate bar 1 is installed substantially below the gate bar 1 mounting shaft 4 of the housing 2. The load applied to the gate bar 1 is detected as a stress generated in the housing 2 by the detector 6 including the sensor 7. The stress detected by the detector 6 is output to the alarm transmission device 10 as a detection signal, and the alarm bell 21 as the alarm transmission device 10 operates. Further, the monitoring camera 22 which is an imaging device is operated by an output signal from the alarm transmission device 10 according to the detection signal. At the same time, in the management office 20, the operation of the alarm bell 21, the blinking of the patrol light 23, and the monitoring by the monitor television 24 are started. It is known from experiments that the sensor 7 constituting the detector 6 of the present embodiment detects the load best by being installed substantially below the mounting shaft 4 of the gate bar 1 of the housing 2.

The operation will be described. The gate breaker of the present embodiment is installed, for example, at the entrance of a toll parking lot, and the gate bar 1 of the gate breaker is a bar-shaped breaker of a bar-shaped breaker provided for temporarily stopping a car entering and leaving. It is. The car you want to park at the entrance gate
Since the gate bar 1 is descending, it stops temporarily. When the car stops at the entrance gate, a parking ticket such as a magnetic recording card or a punched card is issued after entry of the parking time and the like. When the driver receives the parking ticket, the gate bar 1 is moved upward by the driving force of the motor 5 transmitted through the speed reducer 3 around the mounting shaft 4 of the support member 8 that supports the gate bar 1 so that it can be opened and closed. By turning by 75 degrees, the vehicle is lifted and the vehicle can enter. At the time of leaving the car, at the exit gate, since the gate bar 1 is descending, the parking is stopped at a predetermined position, and the parking fee is determined by reading a parking ticket by a predetermined fare clearing machine. As a result of the settlement, the gate bar 1 of the barrier at the exit gate opens in the same manner as when entering, and can exit.

Here, the situation and operation of a breakage accident of the gate breaker including the gate bar 1 at the exit gate will be described. If the leaving car tries to leave without adjusting the fee, the gate bar 1 is naturally down,
You cannot leave the car without touching the gate bar 1. In the present embodiment, the load generated when the gate bar 1 is touched and pressed while the gate bar 1 is down is detected by the detector 6. By the detector 6,
The detected load is output to the alarm transmission device 10, and the operation of the alarm bell 21, the imaging by the monitoring camera 22 as an imaging device, and the monitoring by the monitor television 24 in the management office 20 are performed. The surveillance camera 22 may be a single camera, but may be a plurality of cameras. According to the plurality of cameras, it is possible to capture images from a plurality of angles. It becomes possible to take an image.

The detector 6 of this embodiment will be described. The detector 6 includes the circuit shown in FIG. 3 and the block diagram shown in FIG. The stress applied to the housing 2 is detected by a strain sensor 7 composed of a pressure resistance element. here,
A strain sensor 7 incorporating a pressure resistance element whose resistance value changes with pressure is incorporated in an AC signal driven full bridge circuit 30 shown in FIG. 3, and an alarm is issued when the output changes to a reference value or more. Have been.

Next, the full bridge circuit 30 of the first embodiment will be described. The current flowing between a and b is I, the applied voltage between a and ab is V, the resistance value is R _ab , and the respective resistance values are R
_Assuming that R ₁ , R ₂ , R ₃ and the resistance value of the strain sensor 7 are R _X , the following relational expression holds. (R ₁ + R ₂ ) and (R ₃ + R _X )
Because they are connected in parallel,

## EQU1 ## R _ab = (R ₁ + R ₂ ) // (R ₃ + R _X ) (1)

R _ab = ((R ₁ + R ₂ ) (R ₃ + R _X )) / (R ₁ + R ₂ + R ₃ + R _X ) (2)

Equation 3] _{I = V / R ab (3} ) the current flowing through R _X I _X is

Equation 4] _{I X = V / (R 3} + R X) (4) current I ₁ flowing through R ₁ is

Since I ₁ = V / (R ₁ + R ₂ ) (5), the voltage V _y between y and b is

[6] _{V y = V-R X ·} I X = V- (R X / (R 3 + R X)) · V = (R 3 / (R 3 + R X)) · V (6) x, b the voltage V _x between,

V _x = V−R ₁ · I ₁ = V− (R ₁ / (R ₁ + R ₂ )) · V = (R ₂ / (R ₁ + R ₂ )) · V (7) x, y The voltage difference between

Equation 8] _{V x -V y = (R 2} / (R 1 + R 2)) · V- (R 3 / (R 3 + R X)) · V = (R 2 / (R 1 + R 2) -R _{3 / (R 3 + R X} )) · V = (R 2 (R 3 + R X) -R 3 (R 1 + R 2)) / ((R 1 + R 2) (R 3 + R X)) = (R 2 _{R X -R 1 R 3) /} ((R 1 + R 2) (R 3 + R X)) ( it can be expressed as 8).

The resistance value when a stress is applied is represented by R_X0When
And the resistance when the stress is applied is R _X0+ Δ

V _x −V _y = (R ₂ (R _X0 + Δ) −R ₁ R ₃ ) / ((R ₁ + R ₂ ) (R ₃ + R _X0 + Δ)) (9)

Here, when no stress is applied,
Each resistance value is adjusted so that the voltage between xy becomes zero when Δ = 0. For example, R ₁ = R ₂ = R ₃ = R _X0 = R.
When this relationship is established, equation (9) becomes the following equation.

Equation 10] _{V x -V y = RΔ / (} 2R (2R + Δ)) (10) ≒ (Δ / 4R) because it is (1-Δ / 2R) Δ / 2R«0, (10) formula, ( Equation 11) is obtained.

[0028]

V _x −V _y = Δ / 4R (11) Thus, the output voltage of the bridge circuit is proportional to the distortion force.

Next, transmission of an alarm will be described. When an AC signal V = asin (ωt) is applied to the full bridge circuit 30 by the AC power supply 31, the output from the full bridge circuit 30 outputs an AC signal (V) having an amplitude proportional to the magnitude of the distortion. _x− V _y ).
After that, the portion of the negative voltage is cut by the half-wave rectifier circuit 42. The output voltage V ₀ is converted into direct current by the integration circuit 43 and is proportional to the amplitude of (V _x −V _y ).

Next, the output voltage V ₀ is supplied to the comparator 44
_Is compared with the reference voltage V _Ref . Comparator 4
In 4, the output voltage _Vout is determined based on the following criteria.

(1) When V ₀ > V _Ref , V _out = 0 V Low level (12)

(2) When V ₀ <V _Ref , V _out = 5V High level (13)

When the output value from the comparator 44 changes from a high level to a low level, the alarm transmitting device 10 determines that an abnormal load has occurred on the gate bar 1 and transmits an alarm.

In another embodiment shown in FIG. 5, the electrostatic strain sensor 7 is connected to an LC oscillation circuit 51 for changing the oscillation frequency.
In this case, the oscillation frequency of the LC oscillation circuit 51 is changed according to the magnitude of the applied distortion. LC
In the oscillation circuit 51, the resonance frequency is determined by connecting the reactance L of the coil and the conductance C of the capacitor in series or in parallel, so that the resonance frequency can be changed by changing the capacitance of the capacitor. it can. As described above, according to the magnitude of the distortion, the LC oscillation circuit 5
The number of oscillations as the output of 1 can be changed. By counting this frequency, it is possible to determine whether or not the distortion has exceeded a predetermined value. Specifically, since the output of the LC oscillation circuit 51 is a sine wave having a predetermined frequency corresponding to the distortion, the waveform shaping circuit 5
2 is converted into a rectangular wave. A rectangular wave output from the waveform shaping circuit 52 is measured by a counter 53 for a predetermined time.
Since the output from the counter 53 is a count value of the rectangular wave reset at predetermined time intervals, a value proportional to the oscillation frequency can be obtained. The output value of the counter 53 is compared with a predetermined value in a digital comparator 54 and is output to a plurality of alarm oscillation devices 10.

More specifically, in the electrostatic strain sensor 7, as the strain increases, the distance between the electrodes decreases, and the capacitance increases. In the LC oscillation circuit 51, the oscillation frequency decreases. Therefore, if the oscillation frequency becomes smaller than the predetermined value,
An alarm can be output assuming that the applied distortion has become larger than a predetermined value. The oscillation frequency according to the distortion is known from an experiment. In the second embodiment, the alarm transmitting device 10 includes the first alarm transmitting device 12, the second
An alarm transmission device 13 and a third alarm transmission device 14 are provided, respectively, a first-stage alarm, a second-stage alarm, and a third-stage alarm.
Sends a stage warning. When it is simply pressed,
The first alarm transmission device 12 is activated, and a bell is sounded as a first-stage alarm. When pressed with a greater force, the second alarm transmission device 13 is activated, and as a second stage alarm,
A loud bell rings. If the barrier, including the gate bar, is pushed with enough force to break it,
The alarm transmission device 13 is activated, and as a third stage alarm, imaging by the imaging device is started and the administrator is notified. The first alarm transmission device 12, the second alarm transmission device 13, and the third alarm transmission device 14 may be those that notify the administrator by wireless notification or those that emit an alarm sound in a parking lot.

The surveillance camera may have a simplified configuration in which a recording device is installed at a position where the surveillance camera is installed and a monitor TV is not installed at the management office. It is also possible to adopt a configuration in which the monitor is installed and constantly monitored by a monitor television, and recording is started by an alarm signal. Regarding the configuration of the surveillance camera, many configurations used in convenience stores, banks, and the like are known, so the configuration that is most suitable for the corresponding parking lot may be used.

In this embodiment, the alarm sound is the alarm bell 21, but it may be a buzzer, a synthesized voice for calling attention, or any other sound as long as it is an alarm sound. .

The configuration of the alarm device shown in the block diagram of FIG. 6 will be described. The alarm device includes a sensor 7 for detecting a load applied to the gate bar 1, a detector 6 including the sensor 7, an alarm transmission device 10 including a wireless device 11 activated by an output signal of the detector 6, and an alarm transmission device 10. , An alarm bell 21, a patrol light 23, a monitoring camera 22 operated by a signal from the alarm transmitting device 10, and a monitor television 24. By appropriately arranging this alarm device at the corresponding position of the existing gate breaker, the load applied to the gate bar 1 can be detected properly, and an alarm is issued according to the applied load. , The monitoring camera 22 can take an image.

The appropriate position described here means, for example, in the case of the sensor 7 of the detector 6, the gate bar 1 itself and the support member 8 that supports the gate bar 1 so as to be openable and closable inside the housing 2. This is a position substantially below the mounting shaft 4, and in the surveillance camera 22, the position where the gate bar-1 and the corresponding vehicle can be imaged. However, if the load applied to the gate bar 1 can be appropriately detected, it does not matter to the installation position.

The alarm device can be retrofitted to an existing parking gate breaker. The alarm device has the same configuration as the alarm device provided in the above-described circuit breaker.

[Brief description of the drawings]

FIG. 1 is an external view of a gate breaker according to one embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of the embodiment.

FIG. 3 is a circuit diagram illustrating a detector.

FIG. 4 is a block diagram of a circuit constituting the detector.

FIG. 5 is a block diagram of a circuit constituting a detector according to another embodiment.

FIG. 6 is a block diagram showing a configuration of an alarm device according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Gate bar 2 ... Case 3 ... Reducer 4 ... Mounting shaft 5 ... Motor 6 ... Detector 7 ... Sensor 8 ... Support member 10 ... Alarm transmission device

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 29, 1999 (1999.10.
29)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 7

[Correction method] Change

[Correction contents]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

SUMMARY OF THE INVENTION At a gate of a parking lot for temporarily stopping a car entering or leaving at a doorway of a parking lot, a gate bar as a blocking fence and a support for opening and closing the gate bar are provided. a member, a housing for disposing the supporting member, the load on the gate bar stress
And an alarm transmitting device that generates an alarm signal based on an output signal of the detector.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

[0009] Further, another invention relates to a method of entering or exiting a building by using a gate bar which is a blocking fence at an entrance of a parking lot.
An alarm device in a gate interrupter of a parking lot for temporarily stopping a leaving car, comprising: a detector that detects a load applied to a gate bar as a stress; and an alarm transmission device that issues an alarm signal based on an output signal of the detector. It is characterized by things.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

[0011]

According to the above construction, when a load is applied to the gate bar, the load is applied to the gate bar in the parking gate interrupter for temporarily stopping a car entering or exiting at the entrance of the parking lot. This can be detected as stress by the detector, and an alarm signal can be issued. For example, when leaving a parking lot, the gate bar can be opened by adjusting the fee, but if the fee is not adjusted, the gate bar is closed. However, even when the gate bar is closed, when the car trying to leave pushes the gate bar, it detects that it was pressed,
Further, an alarm signal can be transmitted.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

Further, according to the invention of claim 7, at the entrance of the parking lot, a gate bar which is a blocking fence is used.
For a gate breaker in a parking lot without an existing alarm device for temporarily stopping a car entering or leaving, a detector that detects the load applied to the gate bar as stress , and an alarm signal based on the output signal of the detector It becomes possible to mount an alarm device comprising an alarm transmitting device that issues an alarm.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0025

[Correction method] Change

[Correction contents]

Next, the full bridge circuit 30 of the first embodiment will be described. The current flowing between a and b is I, the applied voltage between a and ab is V, the resistance value is R _ab , and the respective resistance values are R
_Assuming that R ₁ , R ₂ , R ₃ and the resistance value of the strain sensor 7 are R _X , the following relational expression holds. (R ₁ + R ₂ ) and (R ₃ + R _X )
Because they are connected in parallel,

## EQU1 ## R _ab = (R ₁ + R ₂ ) // (R ₃ + R _X ) (1)

R _ab = ((R ₁ + R ₂ ) (R ₃ + R _X )) / (R ₁ + R ₂ + R ₃ + R _X ) (2)

Equation 3] _{I = V / R ab (3} ) the current flowing through R _X I _X is

Equation 4] _{I X = V / (R 3} + R X) (4) current I ₁ flowing through R ₁ is

Since I ₁ = V / (R ₁ + R ₂ ) (5), the voltage V _y between y and b is

[6] _{V y = V-R X ·} I X = V- (R X / (R 3 + R X)) · V = (R 3 / (R 3 + R X)) · V (6) x, b the voltage V _x between,

V _x = V−R ₁ · I ₁ = V− (R ₁ / (R ₁ + R ₂ )) · V = (R ₂ / (R ₁ + R ₂ )) · V (7) x, y The voltage difference between

Equation 8] _{V x -V y = (R 2} / (R 1 + R 2)) · V- (R 3 / (R 3 + R X)) · V = (R 2 / (R 1 + R 2) -R _{3 / (R 3 + R X} )) · V = (R 2 (R 3 + R X) -R 3 (R 1 + R 2)) · V / ((R 1 + R 2) (R 3 + R X)) = ( _{R 2 R X -R 1 R 3} ) · V / ((R 1 + R 2) (R 3 + R X)) ( can be expressed as 8).

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0026

[Correction method] Change

[Correction contents]

The resistance value when a stress is applied is represented by R_X0When
And the resistance when the stress is applied is R _X0+ Δ

Be expressed as Equation 9] _{V x -V y = (R 2} (R X0 + Δ) -R 1 R 3) · V / ((R 1 + R 2) (R 3 + R X 0 + Δ)) (9) it can.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0027

[Correction method] Change

[Correction contents]

Here, when no stress is applied,
Each resistance value is adjusted so that the voltage between xy becomes zero when Δ = 0. For example, R ₁ = R ₂ = R ₃ = R _X0 = R.
When this relationship is established, equation (9) becomes the following equation.

Equation 10] _{V x -V y = RΔ · V} / (2R (2R + Δ)) ≒ (Δ / 4R) because it is (1-Δ / 2R) · V (10) Δ / 2R«0, (10) The equation is as shown in equation (11).

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0028

[Correction method] Change

[Correction contents]

[0028]

Equation 11] _{V x -V y = (Δ /} 4R) · V (11) Thus, the output voltage of the bridge circuit becomes proportional to the distortion forces.

Claims (10)

[Claims] 1. A parking gate breaker for temporarily stopping a car entering or leaving an entrance of a parking lot, comprising: a gate bar serving as a blocking fence; and a support member for supporting the gate bar so that the gate bar can be opened and closed. A housing provided with the support member, a detector for detecting a load applied to the gate bar, and an alarm transmission device for issuing an alarm signal based on an output signal of the detector, Gate breaker. 2. The gate interrupter of a parking lot according to claim 1, wherein said detector is installed substantially below a gate bar mounting shaft of said housing. 3. The apparatus according to claim 2, wherein the detector increases or decreases an output in proportion to a load applied to the gate bar.
The gate interrupter of a parking lot according to claim 1 or 2, wherein a plurality of warning signals are transmitted according to the output of the detector. 4. The gate breaker of a parking lot according to claim 1, wherein the alarm signal is an alarm sound. 5. The apparatus according to claim 1, wherein the alarm transmitting device is a wireless device that transmits a plurality of signals according to an output of the detector. Parking gate breaker. 6. The at least one alarm activated by the alarm signal.
6. The parking gate interrupter according to claim 1, further comprising: an imaging device, wherein the imaging device images a gate bar or an area including a corresponding vehicle. 7. . 7. An alarm device in a gate interrupter of a parking lot for temporarily stopping a car entering or exiting at a doorway of a parking lot using a gate bar as a blocking fence, wherein a load applied to the gate bar is detected. An alarm device for a gate interrupter in a parking lot, comprising: a detector that performs an alarm signal according to an output signal of the detector. 8. The alarm device according to claim 7, wherein the alarm signal is an alarm sound. 9. The parking gate according to claim 7, wherein the alarm transmitting device is a wireless device that transmits a plurality of signals according to the output of the detector. Alarm device of circuit breaker. 10. The apparatus according to claim 7, further comprising at least one image pickup device that is activated by the alarm signal, wherein the image pickup device picks up an image of a gate bar or an area including a corresponding vehicle. The alarm device for a gate interrupter of a parking lot according to any one of the preceding claims.