JP2002044858A - Gas leak detector, gas leak detecting system and network system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a router to spread throughout customers. SOLUTION: A gas leak detector 30 is composed of the router 20, a gas detecting part 32, a power supplying system 36 and a housing 38. The router 20 can filter data. The gas detecting part 32 detects gas. The power supplying system supplies power from external to the router 20 and the gas detecting part 32. The housing 38 contains the router 20 and the gas detecting part 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas leak detector, a gas leak detection system, and a network system capable of detecting a gas leak in a room.

[0002]

2. Description of the Related Art With the networking of computers,
2. Description of the Related Art In various companies, routers having a filtering function for controlling the passage or blocking of data packets based on an IP address have become widespread. Connect this router to LAN (Local
Incorporation into an Area Network) makes it possible, for example, to discard unauthorized packets and accept only necessary information.

[0003]

In recent years, not only companies but also ordinary households are connecting computers and peripheral devices to form a network. In such a case, it is necessary to install a router in the home in order to prevent unauthorized information from invading from the outside and to transmit certain data to a corresponding PC. However, ordinary houses were not designed with routers in mind, so the routers had to be fixed to a wall or mounted on the floor. For this reason, there is a problem that the room feels narrow or the beauty is impaired, and it has been difficult to spread the router to ordinary households.

[0004] In addition, when using a router, it is necessary to supply power, but since there are only a limited number of outlets in the home, so-called octopus wiring is used, or outlets are replaced with other electrical equipment. Must be used,
This also hindered the spread of routers.

[0005] The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to make it easier to spread a router to ordinary households.

[0006]

In order to solve the above-mentioned problems, a gas leak detector according to the present invention comprises a router capable of filtering data, a gas detector for detecting gas, and an electric power from outside the system. It is characterized by comprising a power supply system for supplying to the router and the gas detector, and a housing for accommodating the router and the gas detector.

In the gas leak detector according to the present invention, since the router is housed in the housing together with the gas detection unit, the router does not make the room feel small and does not impair the beauty of the room. For this reason, the user can easily install the gas leak detector of the present invention in the home, and can easily spread the router to ordinary households. Also, power can be supplied to the router by the power supply system that supplies power to the gas detection unit, so that it is not necessary to prepare wiring for the router. As a result, the penetration rate of the router to ordinary households can be further improved.

[0008] Further, the gas leak detection system of the present invention comprises:
The gas leak detector, comprising a home appliance control unit connected to the router and the home appliance, when the gas is detected by the gas detection unit, the router turns off the home appliance to the home appliance control unit And transmitting a signal to the effect.

According to the gas leak detection system of the present invention, when a gas leak is detected by gas leak detection, the router sends a signal to the home appliance controller to turn off the home appliances, Is turned off by the home electric appliance control unit, it is possible to prevent a situation in which the electric home appliance is exploded due to gas.

[0010] The network system of the present invention comprises:
The above-described gas leak detector, a refrigerator having a built-in server connected to the router and having a cooling unit capable of cooling articles,
And a power supply system provided in the refrigerator for supplying electric power from outside the system to the server and the cooling unit.

According to the network system of the present invention, external data is filtered by the router, and only necessary information is sent to the server in the refrigerator. Further, since the server is built in the refrigerator, the server does not reduce the size of the room or impair the beauty of the room. Furthermore, since the power can be supplied to the server by the power supply system that supplies power to the cooling unit of the refrigerator, there is no need to prepare wiring for the server. For this reason, the user can easily construct the network system of the present invention at home, and can easily spread the server to ordinary households.

Further, in the network system of the present invention, it is preferable that the server is arranged at a position where the cooling unit has a cooling effect. With this configuration,
The server can be cooled, and the function of the server can be prevented from deteriorating due to overheating.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a gas leak detector, a gas leak detection system, and a network system according to the present invention will be described below in detail with reference to the accompanying drawings. Note that the same reference numerals are used for the same elements, and redundant description will be omitted.

FIG. 1 is a schematic diagram showing a state in which a network system 10 according to the present embodiment is constructed indoors.
1 is a configuration diagram showing a network system 10. FIG. The network system 10 of the present embodiment includes a router 20.
And a refrigerator 50 containing a server 40 connected to the router 20.

As shown in FIG. 2, the gas leak detector 30
Processes an output current from a gas sensor (gas detection unit) 32 for detecting gas used at home and a gas sensor 32 indicated by an analog value to generate an IP (Internet Pro
signal processing unit 34 for converting to a digital signal corresponding to tocl)
And a router 20 for transmitting a signal from the signal processing unit 34 to a designated place, and a power supply circuit (power supply system) 36 for supplying power to the gas sensor 32 and the router 20.
Are accommodated in a substantially rectangular parallelepiped package 38. The gas leak detector 30 of the present embodiment is mainly mounted on the bottom of the refrigerator 50 because it mainly detects propane gas having a high specific gravity. However, it is necessary to detect gas having a low specific gravity such as city gas. If there is, it will be installed above the room.

The power supply circuit 36 is connected to the plug 3 shown in FIG.
5 can be supplied to the gas sensor 32 and the router 20 by inserting it into the outlet 37 in the room.

The gas sensor 32 is a so-called semiconductor sensor using a ceramic semiconductor. The semiconductor of the gas sensor 32 is constantly heated to about 300 ° C. to 400 ° C. by the current from the power supply circuit 36. Then, when there is no gas around the gas sensor 32, the oxygen in the air is adsorbed on the surface of the semiconductor, so that the electrons inside the semiconductor are attracted to the surface. The value is rising. When the combustible gas comes into contact with the semiconductor of the gas sensor 32, a chemical reaction occurs with the oxygen on the semiconductor surface to generate oxygen dioxide, and oxygen is separated from the semiconductor surface. As a result, the electrons that have been attracted to the surface of the semiconductor return to the inside of the semiconductor, the current flowing through the gas sensor 32 changes, and the gas can be detected.

Although the current value obtained by the gas sensor 32 is an analog signal, when the signal processing unit 34 determines that the current value obtained by the gas sensor 32 is equal to or higher than a predetermined threshold value, gas leakage occurs. "1" as occurring
Is transmitted to the router 20. On the other hand, when determining that the current value from the gas sensor 32 is less than the threshold value, the signal processing unit 34 transmits information “0” to the router 20 assuming that no gas leakage has occurred. That is,
The signal processing unit 34 converts an analog signal from the gas sensor 32 into an IP-compatible digital signal and transmits the signal to the router 20. Note that the signal processing unit 34 does not necessarily need to transmit a signal to the router 20 when determining that no gas leakage has occurred. Although not shown, the gas leak detector 30 is provided with an alarm which sounds a buzzer and gives an alarm when it is determined that a gas leak has occurred.

The router 20 has a telephone line 22 (see FIG. 1).
Through the Internet 100, and further connected to a security center 110 that manages the security of dwellings via the Internet 100. In addition, the router 20 includes a PC (Personal Compu
ter) 120 and the server 40 in the refrigerator 50. Further, the PC 120 is a television, a video,
It is connected to various home electric appliances (not shown) such as an air conditioner and a water heater.

When the information “1” is input from the signal processing unit 34 assuming that a gas leak has occurred, the router 20 outputs a gas leak detection signal indicating that a gas leak has occurred to the PC 1.
20 and the security center 110. Further, in this case, a signal to turn off the electric home appliances is transmitted from the router 20 to the PC 120, and the PC 120 that has received the signal is set to turn off the electric power of each electric home appliance. As described above, in the present embodiment, since the power of each home appliance is turned off by the PC 120, it is possible to prevent a situation in which the home appliance is exploded due to gas. In the present embodiment, a gas leak detection system is constructed by the gas leak detector 30 and the PC 120. When receiving the gas leak detection signal, the PC 120 outputs a warning screen to a display and emits a warning sound. On the other hand, the security center 110 receiving the gas leak detection signal
Can send the nearest security guard to the home or turn off all home appliances in the home.

The server 40 can receive, via the router 20, an external data packet transmitted through the Internet 100. At this time, router 2
By setting a routing table of 0, data packet filtering is performed, and the server 40 can receive only necessary data by removing illegal data. Although not shown, the server 40 is connected to various home appliances such as a personal computer, a television, and a water heater at home by wire or wirelessly, and functions as a central unit that transmits and receives information to and from these home appliances. You may.

As the server 40, various servers capable of providing a service in response to a request from a client are applied, and examples thereof include a DNS server, a DHCP server, an access server, a WWW server, a mail server, and a news server. . Further, the server 40 is arranged at a position where the cooling effect of the cooling unit 52 is exerted. Thereby, the overheating of the server 40 can be suppressed by the cooling unit 52 and the function of the server 40 can be prevented from being deteriorated.

The refrigerator 50 includes a server 40, a known cooling unit 52 for cooling articles such as foodstuffs, a power supply circuit 54 for supplying electric power to the cooling unit 52 and the server 40 from outside the system. Built-in. The power supply circuit 54
By inserting the plug 39 shown in FIG. 1 into the outlet 37 in the room, electric power from outside the system can be supplied to the cooling unit 52 and the server 40.

According to the gas leak detector 30 as described above, the following effects can be obtained. That is, in the gas leak detector 30 of the present embodiment, since the router 20 is housed in the package 38 together with the gas sensor 32, the interior of the room is not felt by the router 20 and the beauty of the room is not impaired. For this reason, the user can install the gas leak detector 30 of the present embodiment in the home without hesitation, and can easily spread the router 20 to ordinary households. In particular, gas leak detectors are indispensable for ensuring safety in households using gas, so gas leak detectors are required, for example, every time a new house using gas is built . That is, as city gas and propane gas spread, the demand for a gas leak detector increases, and the router 20 can be spread in general households.

Since the power can be supplied also to the router 20 by the power supply circuit 36 for supplying the power to the gas sensor 32, it is not necessary to prepare the wiring for the router 20. For this reason, it is possible to prevent the situation of using octopus wiring to secure the power supply of the router or using an outlet instead of other electrical equipment,
The penetration rate of the router 20 to general households can be further improved.

Further, according to the network system 10 of the present embodiment, as described above, external data is filtered by the router 20 and only necessary information is sent to the server 40 in the refrigerator 50. Also, since the server 40 is built in the refrigerator 50, the server 4
With 0, the room is not narrowed or the beauty of the room is not impaired. Further, power can also be supplied to the server 40 by the power supply circuit 54 that supplies power to the cooling unit 52 of the refrigerator 50, so that there is no need to prepare wiring for the server 40. Therefore, the user can easily construct the network system 10 of the present embodiment in a home, and can easily spread the server 40 to a general home.

Although the invention made by the inventor has been specifically described based on the embodiment, the invention is not limited to the above embodiment. For example, when the gas detection unit detects gas, it is not always necessary to transmit a gas leak detection signal to the router. Even in this case, the router is housed in the housing, so that the room does not feel narrow, and power is supplied by the power supply system, eliminating the need for unique wiring, making the router easy to spread to ordinary households Can be done.

The gas detector is not limited to the semiconductor type described above, but may be a so-called catalytic combustion type or a hot-wire type semiconductor.

If the level of gas leakage is divided into two based on the magnitude of the current value from the gas detector, and it is determined that gas leakage has occurred but the gas amount is less than the predetermined value, the router Does not transmit the gas leak detection signal to the security center, but only to the electrical equipment control unit,
When the gas amount is equal to or more than the predetermined value, the router may transmit a gas leak detection signal to the security center and the electric device control unit. In this case, when the amount of gas leakage is small, the security center does not need to take measures such as dispatching a security guard, so that the cost can be reduced.

[0030]

As described above, in the gas leak detector according to the present invention, since the router is housed in the housing together with the gas detector, the interior of the room is felt small by the router, and the aesthetic appearance of the room is impaired. It will not be. For this reason,
The user can easily install the gas leak detector of the present invention in the home, and can easily spread the router to ordinary households. In addition, since the power can be supplied to the router by the power supply system that supplies power to the gas detection unit,
There is no need to prepare wiring for the router. As a result, the penetration rate of the router to ordinary households can be further improved.

According to the network system of the present invention, external data is filtered by the router, and only necessary information is sent to the server in the refrigerator. Further, since the server is built in the refrigerator, the server does not reduce the size of the room or impair the beauty of the room. Furthermore, since the power can be supplied to the server by the power supply system that supplies power to the cooling unit of the refrigerator, there is no need to prepare wiring for the server. For this reason, the user can easily construct the network system of the present invention at home, and can easily spread the server to ordinary households.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a state in which a network system according to the present invention is constructed indoors.

FIG. 2 is a configuration diagram of the network system shown in FIG. 1;

[Explanation of symbols]

Reference Signs List 10 network system, 20 router, 22 telephone line, 30 gas leak detector, 32 gas sensor (gas detector), 34 signal processor, 35, 39 plug
36 power supply circuit (power supply system), 37 outlet, 38 package (housing), 40 server, 50
Refrigerator, 52 cooling unit, 54 power supply circuit (power supply system), 110 security center, 120 PC
(Home appliance control unit).

Claims (4)

[Claims] A router capable of filtering data; a gas detection unit for detecting gas; a power supply system for supplying power from outside the system to the router and the gas detection unit; A gas leakage detector, comprising: a housing for accommodating a gas detection unit. 2. A gas leak detector according to claim 1, further comprising: a home appliance control unit connected to the router and the home appliance. When the gas is detected by the gas detection unit, the router is configured to: A signal for turning off the power of the home appliance to the home appliance control unit. 3. A refrigerator having a gas leak detector according to claim 1, a server having a built-in server connected to the router, and having a cooling unit capable of cooling articles, and a refrigerator provided inside the refrigerator, from outside the system. And a power supply system for supplying the server and the cooling unit with the power. 4. The network system according to claim 3, wherein the server is disposed at a position where the cooling unit has a cooling effect.