JPH11342220A - Fire monitoring system for parking lot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fire prevention system for dealing with the early stage of fire at a mechanical parking lot. SOLUTION: The change of physical phenomenon which is caused by the fire occurred from a vehicle in each parking space 3 is positively taken into a suction room W and a smoke detector immediately perceives the fire and it makes possible to deal with the early stage of fire. Setting a camera equipment CM at a cargo handling equipment 5 and using a radio signal, it is capable of checking the situation of the parking space 3. If the fire develops further, it is capable of performing a fire extinguishing with a bubblehead S.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a disaster prevention system for a mechanical parking lot.

[0002]

2. Description of the Related Art In recent years, a so-called mechanical parking lot has been used in which a vehicle is automatically taken in and out of a multistage parking space by a cargo handling device. In this parking lot, high-density parking can be performed without human intervention, so that the land can be effectively used, and it is attracting attention.

[0003] In this mechanical parking lot, since parking spaces are arranged at high density, there is usually little room for humans to enter, and in the event of a fire, it is impossible for the manager to rush. Therefore, in a mechanical parking lot, it is usual to provide a gas fire extinguishing system that emits an inert gas to the entire volume to extinguish suffocation.

[0004] However, the mechanical parking lot is relatively large and requires a considerable amount of space just to install an inert gas cylinder, and an efficient disaster prevention system is desired. As a technique for improving such a disaster prevention system for a mechanical parking lot, for example, Japanese Unexamined Patent Publication No. 5-154215 discloses that a fixed fire extinguishing point is provided as a fire extinguishing booth in the event of a fire in a part of a parking space. Japanese Patent Application Laid-Open No. 4-364865, entitled "Mechanical parking fire extinguishing robot" in which an ITV or fire extinguishing device is mounted on a cargo handling device to operate as a fire extinguishing robot, and a parking space where a fire has occurred is isolated and concentrated. Japanese Patent Laid-Open No. 4-
Japanese Patent Publication No. 364866, "Mechanical parking lot fire extinguishing system" and Japanese Patent Application Laid-Open No. 5-154216, "Mechanical parking lot fire prevention curtain fire extinguishing system" are available.

In order for each of the above fire extinguishing systems to function, it is necessary to take measures at the beginning of a fire. As a system for detecting an initial fire for that purpose, for example, Japanese Unexamined Patent Publication No. 5-14 is equipped with a wireless sensor for each parked vehicle.
No. 6521, "Fire monitoring system in a car in a parking lot" and Japanese Patent Application Laid-Open No. 5-146527, "Fire monitoring system in a parking lot", an optical fiber is arranged in each parking space, and the Raman effect of laser beam irradiation causes a fire. JP-A-5-3210 "Detecting the occurrence and location of a fire" in "Mechanical parking lot fire monitoring system".

[0006]

However, most of the above-mentioned fire extinguishing systems are concerned with extinguishing a vehicle in a fire in the early stage of the fire, and each proposal is revolutionary. It can be lost. Therefore, as disclosed in Japanese Patent Application Laid-Open No. 8-82110, "mechanical parking system", the entire parking lot is divided into a plurality of fire-prevention sections, the sections are selected, and inert gas is released to thereby extinguish gas fire. There are also proposals to reduce the capacity of the equipment, and a fire extinguishing system in the parking space is required, as in the case where it is not possible to expect the spread of fire or the operation of the cargo handling equipment.

[0007] A method for detecting a fire is disclosed in Japanese Unexamined Patent Application Publication No.
Japanese Patent Application Laid-Open No. 146521 and Japanese Patent Application Laid-Open No. 5-146527 disclose a system for mounting a sensor for each vehicle using wireless communication, and a collation system for identifying the position of the sensor in a parking space based on a fire signal. Will be needed. Further, in the case where the optical fiber disclosed in Japanese Patent Application Laid-Open No. 5-31210 is used as a sensor, it is only possible to detect the heat of a fire.

[0008]

SUMMARY OF THE INVENTION In view of the above, a first aspect of the present invention provides a smoke detector in each parking space,
In a parking lot equipped with a receiving unit that performs a fire alarm based on the signal of a smoke detector, a suction chamber that collects internal air is provided for each parking space, and each smoke detector is provided in the suction chamber. It is characterized by the following. Therefore, a change in physical phenomena caused by a fire generated from a vehicle in a parking space is positively taken into the suction chamber, and the sensor in the suction chamber immediately detects the fire. The signal and the signal relating to the location of the parking space enable early detection and response of the fire.

According to a second aspect of the present invention, there is provided a mechanical parking lot having a cargo handling device in which a plurality of parking spaces are arranged and arranged and which carries a vehicle in and out of the parking space.
The cargo handling apparatus is provided with a camera device, a transmitting device for transmitting a video signal from the camera device as a wireless signal, a receiving device for receiving an image signal based on a wireless signal, and displaying the image signal received by the receiving device. A monitor device is provided. Therefore, by moving the cargo handling device, the fire situation in the parking space can be confirmed, and the wireless signal is used, so that it does not hinder the frequent operation of the cargo handling device at all times.

In a third aspect of the present invention, there is provided a mechanical parking lot having a plurality of parking spaces arranged in a line and having a cargo handling device for transporting vehicles into and out of the parking spaces. A spray head is provided, and an early fire detection means for detecting the position and fire information of each parking space is provided,
When the fire and its position information are obtained by the early fire detection means, the cargo handling device carries out the vehicle of the position information from the parking space. Therefore, if a fire is detected early, the vehicle in the parking space can be pulled out to prevent damage to vehicles other than the vehicle that caused the fire. The fire extinguishing agent is ejected by the action of the spray head, and fire extinguishing work can be performed in the parking space.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings, wherein the same reference numerals have the same names and functions. As shown in FIGS. 1 and 3, a plurality of parking spaces 3 are provided as a plurality of parking spaces 2 in a mechanical parking lot 1. The parking unit 2 is provided on both sides of the transport path 6 of the cargo handling device 5 that slides on the rail 4.
The transport path 6 is connected to a vertical path 9 of the elevator 8.

In each parking space 3, in order to quickly and accurately identify the vehicle in which a fire has occurred, as shown in FIG. 2, a suction chamber W for sucking ambient air by using a sampling pipe WP by an exhaust fan WF is used. And a smoke detector D having high sensitivity is disposed therein. The sampling tube WP is
It is a pipe provided with small holes (not shown) at predetermined intervals in the length direction, and is arranged so as to surround the vehicle in the parking space 3, and even if smoke is generated from any part of the vehicle, the suction chamber W is provided at an early stage.
Can be collected. Then, the analog value (smoke detection level) of all the smoke detectors D is collected while specifying the parking space 3 by the fire receiver RE using an analog addressable detector as the smoke detector D. By setting the detection range of the analog value in the high sensitivity direction, it is possible to detect even a slight smoke in each parking space 3 without missing. Here, the sampling pipe WP may not be required depending on the situation such as the degree of sealing of the parking space 3 and may be in any situation where the smoke in the parking space 3 is efficiently taken into the suction chamber W.

Further, in each parking space 3, there is arranged an automatic foam spray head S which automatically opens by heat by using foam as a fire extinguishing agent. This foam head S is arranged near the ceiling surface inside the parking space 3, near the left and right sides, and for example, as shown in FIG.
The following is used. It has a valve element 18 for closing the discharge port 19, a fast-acting heat sensing operation member 20 having a small heat capacity for pressing the valve element 18 against the discharge port 19, and a deflector 22 fixed to the arm 21.
The valve body 18 is pressed into contact with the discharge port 19 via the packing 23, and the heat sensing operation member 20 is a glass bulb composed of a glass tube 20b and an alcohol 20a sealed therein. , The glass tube 20b is damaged, the support function of the valve body 18 is lost, and the discharge port 1
9 is open. The bubble head is not limited to the glass bulb type, but may be a fusible link mechanism using a fusible alloy. However, a so-called fast-moving head is preferable in terms of thermal response.

A foam solution is always filled up to the discharge port 19 of the foam head S, and an aqueous solution of a drug mixed with a fluorinated surfactant and a stabilizer is used for the foam solution.
Although not shown in detail, the mixture is mixed at a predetermined ratio by a mixer connected to a water supply source such as a water tank and a medicine exclusive tank. Then, when spraying from the foam head S, the deflector 22 is sprayed without foaming because of the substantially flat shape, and the foam solution is directly dropped to the added point without being obstructed by the air current of the flame, and a water film is formed on the surface of the fuel or the like. It is formed to extinguish suffocation. The foam heads S may be arranged one by one at the center of the ceiling surface of the parking space 3. At this time, it is preferable that the range of application by the deflector 22 be substantially rectangular.

The cargo handling apparatus 5 is equipped with a wireless camera device CM, and the parking units 2 are arranged on both sides of the transport path 6. Camera device CM is provided. This camera device CM
Has a built-in transmitting device for miniaturization, and although not shown in detail, the transmitting device transmits an image signal of the camera device CM by a wireless signal.

Then, the transmitted image signal based on the radio signal is received by a receiving device RC provided on the ceiling surface or the like of the transport path 6, and the image signal is not shown in detail.
The image is displayed on a monitor device of a panel integrated with the control device C. Then, when a fire occurs, the operator H can confirm the vehicle in the parking space 3 by the monitor device. Usually, no illumination is used inside the mechanical parking lot 1, so that the camera device CM is preferably a night vision camera. Even a normal camera, camera device CM
At the same time, a lighting device, for example, a spotlight may be used.

The parking lot entrance 30 of the mechanical parking lot 1 is a fixed point P for fire extinguishing work, and a fire extinguisher booth 10 is provided at this fixed point. As shown in FIG. 4, the fire extinguishing booth 10 is surrounded by a fire-resistant wall 12, and a shutter 14 is provided at an entrance 12a. In the fire extinguisher booth 10, a fire extinguisher, for example, a fire extinguishing nozzle 16 of a gas fire extinguisher, a foam head 15 of a foam extinguisher, and a foam fire hydrant so that an operator H can extinguish a fire are provided. This fixed point P is not always required to be near the parking lot entrance 30, and a similar fire extinguishing nozzle or the like may be arranged in an arbitrary parking space 3. By setting the vicinity of the parking lot entrance 30, the operator H can directly check and extinguish the fire, and is completely isolated from surrounding vehicles. Also,
When a fixed point is provided in an arbitrary parking space 3, there is an advantage that the moving time by the cargo handling device 5 can be reduced.

Next, the operation of this embodiment will be described. If a vehicle fires in parking space 3,
The early smoke of the fire is collected by the sampling pipe WP of the parking space 3 and guided to the suction chamber W, where it is detected by the highly sensitive smoke detector D inside. The detected smoke is collected by the fire receiver RE as an analog value, and the fire receiver RE determines a fire based on the presence of a collected analog value of each smoke detector that exceeds a fire determination criterion. At this time, the fire receiver RE notifies the fire occurrence and the parking space 3 where the fire occurred.
Is displayed on a display unit (not shown) to notify the operator H of the occurrence of the fire and the location of the fire.

The operator H having recognized the fire alarm moves the cargo handling device 5 to the corresponding parking space 3 by the control device C. Then, the image signal from the camera device CM is displayed on a monitor device (not shown), and the fire vehicle 25 is confirmed. At this time, the operator H determines the state of the fire of the fire vehicle 25, and determines whether the vehicle is in the initial stage or is expanded so that it cannot be touched.
Out of the vehicle 25. Usually, when it is detected via the smoke detector D, it is considered that the fire is almost an initial fire. From that point, the movement of the cargo handling device 5 to the corresponding parking space 3 based on the fire alarm of the fire receiver RE is performed. The display on the monitor device and the removal of the fire vehicle 25 from the corresponding parking space 3 may be partially or entirely automated.
When the fire vehicle 25 is confirmed by the operator H,
The control device C issues a command to the cargo handling device 5 to move to the fixed point P. When the cargo handling device 5 is moved by this command and stops in front of the fire vehicle 25, the conveyor 21a of the cargo handling device 5 and the conveyor 21b of the parking space 30 are simultaneously driven,
The fire vehicle 25 is transferred to the cargo handling device 5 while being mounted on the gantry. Similarly, the fire vehicle 25 on the cargo handling device 5 is transferred to the elevator 8, moves upward on the vertical path 9, and is transferred to the fixed point P of the parking lot entrance 30. At this time, the fire extinguisher booth 10 can be closed by closing the shutter 14 at the entrance 12a.

In this state, the operator H of the mechanical parking lot 1 operates and controls fire extinguishing means such as gas extinguishing or foam extinguishing according to the fire situation of the fire vehicle 20. Further, it goes without saying that this fire extinguishing work may be automated.

As described above, the fire vehicle 25 carried out of the parking space 3 has an advantage that it can be isolated from surrounding vehicles by moving to the parking lot entrance 30. In particular, the fire vehicle 25 can be large-sized without a fire extinguishing nozzle or the like. A manual fire extinguishing means such as a fire extinguisher may be used.

Next, the case where smoke is not efficiently detected by the smoke detector D, or the smoke is enlarged so that even if it is detected, the smoke cannot be worn. From the fire vehicle 25 after the initial time point, the amount of heat generated increases in addition to the smoke as a fire phenomenon, and as a result, the temperature inside the parking space 3 increases.

When the temperature rises, the temperature around the bubble head S provided on the ceiling surface of the parking space 3 also becomes high. As a result, the heat sensing operation member 20 is opened, the valve element 18 is opened, and the discharge port 19 is opened by the deflector 22. Is sprayed onto the fire vehicle 25. As a result, although not shown in detail, the fire extinguishing pump is activated by the pressure drop of the piping system, and the foam solution adjusted to a predetermined ratio by the mixer is continuously supplied to the foam head S. Therefore, a sufficient fire extinguishing activity is performed on the fire vehicle 25 in the parking space 3,
Does not damage adjacent vehicles or parking facilities. The operation of the foam head S is an automatic activation due to the heat of a fire, and does not require the judgment of the operator H.

As described above, according to the first aspect of the present invention, a suction chamber for collecting the internal air is provided for each parking space, each smoke detector is provided in the suction room, and the vehicle is generated from a vehicle in the parking space. The change in physical phenomena caused by the fire was positively taken into the suction chamber, and the detector in the suction chamber immediately detected the fire, and the signal from the sensor and the signal about the position of the parking space It is possible to detect and respond to fire in the initial stage.

According to a second aspect of the present invention, a cargo handling apparatus includes a camera device, a transmitting device for transmitting a video signal from the camera device as a wireless signal, and a receiving device for receiving an image signal based on the wireless signal. A monitor device that displays the image signal received by the receiving device is provided. By moving the cargo handling device, it is possible to check the fire situation in the parking space and use the radio signal, so that the cargo handling is always performed. Does not interfere with frequent operation of the device.

In a third aspect of the present invention, a fire extinguishing agent automatic spraying head is provided in each parking space, and a fire and its position information can be obtained by an early fire detecting means using a smoke detector. In addition, since the cargo handling device removes the vehicle with the location information from the parking space, if a fire is detected early, pull out the vehicle in the parking space to prevent damage to vehicles other than the fired vehicle. And even if the fire progresses,
The fire extinguishing agent is ejected by the action of the automatic spraying head, and the fire extinguishing operation can be performed in the parking space.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an entire parking lot showing an embodiment of the present invention.

FIG. 2 is an external view showing an arrangement of a smoke detector in the parking space of FIG. 1;

FIG. 3 is an overall horizontal sectional view of FIG. 1;

FIG. 4 is a sectional view of a fixed point in FIG. 1;

FIG. 5 is a sectional view of the automatic foam spray head used in FIG.

[Explanation of symbols]

 25 Fire vehicle 3 Parking space 5 Cargo handling device CM camera device D Smoke detector P Fixed point RC receiver S Foam head W Suction room

Claims (4)

[Claims] In a parking lot provided with a smoke detector provided in each parking space and receiving a fire alarm based on a signal from the smoke detector, suction for collecting air inside each parking space is provided. A fire monitoring system for a parking lot, wherein a room is provided, and the smoke detectors are provided in the suction room. 2. A mechanical parking lot having a plurality of parking spaces arranged in a line and having a cargo handling device for carrying a vehicle into and out of the parking space, wherein the cargo handling device includes a camera device, and a camera device. A transmitting device for transmitting a video signal as a wireless signal is provided, and a receiving device for receiving an image signal based on the wireless signal, and a monitor device for displaying the image signal received by the receiving device are provided. And parking fire monitoring system. 3. A mechanical parking lot having a plurality of parking spaces arranged in a line and having a cargo handling device for transporting vehicles into and out of the parking spaces, wherein each of the parking spaces is provided with a fire extinguishing agent automatic spraying head. And early fire detection means for detecting the position and fire information of each parking space, and when the fire and its position information are obtained by the early fire detection means, the cargo handling device A parking lot fire monitoring system, wherein a vehicle having positional information is carried out from the parking space. 4. The parking lot fire monitoring system according to claim 3, wherein the cargo handling device conveys the vehicle carried out of the parking space of the position information of the fire to the outside of the parking lot or to a fixed fire extinguishing point.