JPH08138177A - Liquid crystal display-type guiding system - Google Patents

Abstract

PURPOSE: To provide a liquid crystal display-type guiding system whereby people are accurately instructed and guided through the use of a character, etc., and the display of guide contents immediately before transmission stop is continued even if a host computer, etc., is damaged so as to cause data transmission stop. CONSTITUTION: A signal transmitted from a disaster detecting center 1 which detects abnormality is received by the input terminal 5 of a processor 3 inside the host computer 2, the processor 3 reads guide display data meeting a refuge rule from a recorder 4 based on the state of the input terminal 5, outputs guide display data from the output terminal 6 of the processor 3, transmits it to a liquid crystal display 7 and display refuge guide. The display 7 has a memory 8 for storing display data from the host computer 2 and a power source 9 for backing-up the display 7 and the memory circuit 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display type guidance system for enhancing the safety of office buildings, tenant buildings, etc. by complementing the function of "guidance light" prescribed by the Fire Service Law and the like.

[0002]

2. Description of the Related Art In a conventional evacuation guidance device, only the direction of an evacuation passage or stairs is indicated by an arrow, and optimal instructions according to the contents of a disaster situation are given through a voice system of another system. The content was the same throughout the building. However, even if the same content is guided by voices all over the building, it cannot be said that the guidance is appropriate for people in different places in the building.

Therefore, various proposals have been made to solve such problems. For example, Japanese Patent Laid-Open No. 5-2581
No. 88 bulletin uses a host computer equipped with a database storing a table of evacuation guidance rules,
When a sensor detects a disaster, a disaster prevention system has been proposed that can automatically display an evacuation guidance display corresponding to the location on the local terminal.

[0004]

However, in the disaster prevention system described above, when the disaster area expands and the host computer is stopped, or the bus line for transmitting the data of the guidance contents from the host computer to each display unit is damaged. In that case, there is a problem that the display unit installed at each place cannot display the contents of the guidance, and the function of the disaster prevention system is completely stopped.

The present invention has been made to solve the above conventional problems, and it is possible to accurately instruct and guide people in a building by using characters and graphics according to the situation of a disaster. Furthermore, even if the host computer or bus line is damaged by a disaster and the transmission of data related to guidance contents is stopped, it is possible to provide a liquid crystal display guidance system that can continue to display the guidance contents immediately before the stop. To aim.

[0006]

According to the present invention, a plurality of disaster detection sensors, a host computer having a storage device having a database relating to evacuation rules of buildings in which the sensors are installed, and a guidance content are displayed. In a liquid crystal display type guidance system including a plurality of liquid crystal displays, when the disaster detection sensor detects an abnormality,
The abnormal signal transmitted from the sensor is received by an input terminal of a processor in the host computer, the processor reads guidance display data according to an evacuation rule from the storage device based on a state of the input terminal, Guide display data is output from the output terminal of the processor and transmitted to the liquid crystal display, and an evacuation guide display corresponding to the sensor that has transmitted the abnormal signal and the installation location of each liquid crystal display is performed, and the liquid crystal display is the host computer. A liquid crystal display type guidance system comprising a memory for storing the guidance display data from the device and a power supply for backing up the liquid crystal display and the memory circuit.

[0007]

According to the liquid crystal display type guiding system of the present invention, when the disaster detection sensor detects an abnormality, the abnormality signal is transmitted to the host computer and received by the input terminal of the processor in the host computer. Next, the processor reads the guidance display data according to the evacuation rule from the storage device based on the reception state of the input terminal, outputs the guidance display data from the output terminal of the processor, and transmits the guidance display data to each liquid crystal display. Since the evacuation guidance display corresponding to the sensor that sent the message and the installation location of each liquid crystal display is performed, the optimal evacuation guidance display for the installation location can be displayed on the liquid crystal display installed at each location in the building using characters and graphics. Done.

Further, since the liquid crystal display has a memory for storing the guidance display data from the host computer for analyzing the contents of the disaster and a power supply for backing up the liquid crystal display and the memory circuit, the host computer and the bus line after the disaster occurs. Even when the operation of No. 1 is stopped, the memory of the liquid crystal display holds the guidance display data, and the liquid crystal display continues to display the guidance contents just before the operation of the host computer or the like was stopped.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic configuration diagram showing an embodiment of a liquid crystal display type guiding system of the present invention. In FIG. 1, the liquid crystal display type guidance system is a host having a plurality of disaster detection sensors 1 installed on each floor of a building and a storage device 4 having a database relating to evacuation rules of the building where the sensors are installed. Computer 2
And a plurality of liquid crystal displays 7 installed on important parts such as stairs and passages required for evacuation guidance on each floor and displaying guidance contents.

Examples of the disaster detection sensor include various sensors for detecting fire (temperature), gas, water leak, electric leak and the like. That is, a fire (temperature) is detected by a thermistor and a Wheatstone bridge circuit or an infrared sensor, water leak is detected by a Wheatstone bridge circuit, and electric leakage is detected by a leak current,
The gas is detected by a semiconductor adsorption type sensor.

When the sensor 1 detects an abnormality such as a fire in the building, the abnormality signal transmitted from the sensor 1 is sent to the processor 3 in the host computer 2.
Received at the input terminal 5 of the
The sensor which has read the guidance display data according to the evacuation rules from the recording device 4 based on the reception state of the evacuation rule, outputs the guidance display data from the output terminal 6 of the processor 3, transmits the guidance display data to the liquid crystal display 7, and transmits the abnormal signal. 1 and an evacuation guidance display corresponding to the installation location of each liquid crystal display 7. That is, by using characters and graphics, the optimal evacuation guidance display can be displayed on the liquid crystal display installed in each place in the building, and even in a confused situation after a disaster, people in the building Exactly
Can be induced.

Further, the liquid crystal display 7 has a memory 8 for storing inductive display data from the host computer 2 and a backup power source 9 for backing up the liquid crystal display and the memory circuit. Therefore, the guidance contents based on the guidance display data transmitted from the host computer can be displayed in real time, and even if a part of the guidance system is damaged, for example, the operation of the host computer or the bus line is stopped, the liquid crystal display is displayed. The memory can hold the guidance display data, and can continue to display the contents of the evacuation guidance based on the data transmitted from the host computer to each liquid crystal display immediately before the transmission of the display data is stopped.

That is, by constructing the guidance system as shown in FIG. 1, it is possible to select the display content by the output from the detection sensor according to the content of the disaster and change the display content depending on the installation location of the liquid crystal display. it can. For example, in a high-rise building, the evacuation instruction method is different between the floor near the ground and the top floor, and it is possible to instruct people who are near the top floor to evacuate to the "sky" from the rooftop via a heliport. The output from each sensor is always captured by the host computer, so the contents of the guidance can be changed in real time using characters and graphics. "Best" guidance is possible.

Further, in the guidance system of the present invention, new data (contents of guidance) is sent from the host computer to the liquid crystal display installed on each floor due to damage to the host computer and the data bus which have been damaged from an accident (fire, etc.) site. Even when transmission is stopped, each liquid crystal display has a built-in memory circuit for storing inductive display data and a backup power supply (battery) for backing up the display and memory circuit. It is possible to continue to display the content of the guidance based on the data immediately before the stop of the transmission on the display, and to give the “next best” instruction / guidance to the people remaining in the building.

Next, the operation of the liquid crystal display type guiding system in the case of a fire, an electric leakage accident and a gas leakage accident in a building employing the liquid crystal display guiding system of the present invention, respectively. The details will be described. When a fire occurs, the temperature rise is detected by a sensor that consists of a thermistor and Wheatstone bridge circuit or an infrared sensor, and the evacuation guidance content is displayed according to the location of the fire and the location of each liquid crystal display that displays the guidance content. The data is read from the storage device in the host computer and the display data is transmitted to each liquid crystal display. For example, in the case of a floor near the ground floor, "A fire has just started. Please evacuate to the ground floor from the emergency stairs in the front right."
On the other hand, in the case of a floor close to the rooftop floor, "There was a fire just now. Please evacuate to the rooftop floor from the rear emergency stairs." Clearly indicate the evacuation method.

When an electric leakage accident occurs, a leakage current is detected by an electric leakage sensor, and according to the place where the electric leakage accident occurs and the installation place of each liquid crystal display that displays the contents of the guidance,
For example, use a staircase inside a building to evacuate an emergency staircase with iron fences, and instruct using letters and graphics to evacuate.

When a gas leak accident occurs, the semiconductor adsorption type sensor detects the gas leak and displays the location of the gas leak accident and the content of guidance for evacuation according to the installation location of each liquid crystal display that displays the content of guidance. The data is read from the storage device in the computer and the display data is transmitted to each liquid crystal display. Depending on the type of gas, the gas will flow either "up" or "down" depending on the difference from the specific gravity of air.
Currently, LNG is used in general office buildings, in which case gas is "upper" because it has a lower specific gravity than air.
Flow to. Therefore, when a gas leak accident occurs, an instruction to evacuate in the “down” direction is displayed in text and graphics. As described above, it is possible to instruct and guide the optimum evacuation method by characters and graphics depending on the content of the accident and the installation location of each liquid crystal display.

[0018]

According to the liquid crystal display type guidance system of the present invention, an abnormality signal from a disaster detection sensor that has detected an abnormality is transmitted to the host computer, the contents of the disaster are analyzed, and the guidance display conforms to the evacuation rules. By reading the data from the storage device, transmitting the guidance display data to the liquid crystal display, and performing evacuation guidance display corresponding to the sensor that has transmitted the abnormal signal and the installation location of each liquid crystal display, using characters and graphics, Optimal evacuation guidance can be displayed on the liquid crystal display installed in each place in the building, and it is possible to accurately instruct and guide people in the building even in a confused situation after a disaster. it can.

Further, the liquid crystal display is equipped with a memory for storing the guidance display data from the host computer for analyzing the contents of the disaster, and a power source for backing up the liquid crystal display and the memory circuit, so that the data is transmitted from the host computer. The guidance contents based on the guidance display data can be displayed in real time, and even if a part of the guidance system is damaged, for example, the host computer or the bus line stops operating, the liquid crystal display memory retains the guidance display data. Therefore, the contents of the evacuation guidance based on the data transmitted from the host computer to each liquid crystal display immediately before the transmission of the display data is stopped can be continuously displayed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a liquid crystal display type guiding system of the present invention.

[Explanation of symbols]

 1 disaster detection sensor 2 host computer 3 processor 4 storage device 5 input terminal 6 output terminal 7 liquid crystal display 8 memory 9 backup power supply

Claims (1)

[Claims] 1. A host computer having a plurality of disaster detection sensors, a storage device having a database relating to evacuation rules of buildings and the like in which the sensors are installed, and a plurality of liquid crystal displays for displaying guidance contents. In the liquid crystal display type guidance system, when the disaster detection sensor detects an abnormality, the abnormality signal transmitted from the sensor is received by the input terminal of the processor in the host computer, and the processor receives the state of the input terminal. Based on the above, the guidance display data according to the evacuation rule is read from the storage device, the guidance display data is output from the output terminal of the processor and transmitted to the liquid crystal display, and the sensor and each liquid crystal display that transmitted the abnormal signal. Evacuation guidance display corresponding to the installation location of the A liquid crystal display type guidance system comprising: a memory for storing the guidance display data from the host computer; and a power supply for backing up the liquid crystal display and the memory circuit.