JP3622399B2 - Sensor address setting tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sensor address setting tool for setting unique addresses of various sensors used in fire alarm equipment, intrusion alarm equipment, and the like.
[0002]
[Prior art]
Conventionally, as a method of giving a unique address to a fire detector used in a fire alarm system or the like, a 5- to 8-bit dip switch or a rotary dip switch is provided in the detector head itself, or sensing is performed. In general, a similar dip switch is provided on the detector base, and a unique address of the sensor in the system is set by the dip switch.
[0003]
On the other hand, as a new technology, an EEPROM is incorporated in the sensor head, and an address is electrically written in the EEPROM, thereby giving the sensor a unique address. It is also possible to rewrite the sensor address from the fire receiver in the system.
[0004]
Even if the sensor is to set the address in the EEPROM built in as described above, if the address is written in the EEPROM of each sensor for each system of the subject order, the address is different. This means that the product number (type of sensor, etc.) must be distinguished, and even if it is a sensor incorporating an EEPROM, it is unrealistic and impossible to ship with a unique address written in advance at the production factory. Eventually, it is necessary to write the address to each sensor using the sensor address setting tool in the field.
[0005]
[Problems to be solved by the invention]
However, when a unique address is written in each EEPROM of a large number of sensors using a sensor address setting tool in the field, electrical connection with the sensor can be easily and quickly performed. In spite of the need for a sensor address setting tool with excellent address setting work efficiency, the connection between the address setting terminal on the sensor side and the connection terminal of the sensor address setting tool is inconvenient, There was a problem that there was no sensor address setting tool with excellent address setting work efficiency.
[0006]
The present invention has been made to solve the above-described problems, and the object of the present invention is to easily and quickly connect the connection terminal of the sensor address setting tool to the address setting terminal on the sensor side. It is an object of the present invention to provide an excellent sensor address setting tool that can be connected to the device and improve the efficiency of address setting work.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is the invention according to claim 1, wherein the sensor base attached to the construction material is configured to be detachable so as to store the address electrically. A sensor address setting tool for setting an address of a sensor head incorporating an erasable nonvolatile memory and having an address setting terminal in a concave portion facing the sensor base, wherein the address a connection terminal for electrical contact with the setting pin, which connecting terminals are provided abutting the guide means on the inner wall of said opposed recesses when in electrical contact with the address setting terminals, the facing recess The guide means that abuts on the inner wall of the sensor is projected from the case of the sensor address setting tool .
[0008]
According to a second aspect of the present invention, the guide means is a contact portion that is provided at the tip of the sensor address setting tool and is in close contact with the inner wall of the facing recess.
[0009]
According to a third aspect of the present invention, the uniquely contacting contact portion is fitted between a pair of lock claws used when engaging and attaching a sensor head to the sensor base. It is characterized by.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a sensor address setting tool according to the present invention will be described in detail with reference to FIGS.
[0011]
FIG. 1 is an explanatory diagram showing how the sensor address setting tool is connected to the sensor, FIG. 2 is a front view showing the sensor address setting tool, FIG. 3 is a side view showing the sensor address setting tool, and FIG. It is a top view which shows a device address setting tool.
[0012]
In FIG. 1, 1 is a sensor address setting tool, and 2 is a sensor head. The sensor head 2 is detachably attached to a construction material such as a ceiling material via a disk-shaped sensor base (not shown) to which a power line (not shown) and a signal line (not shown) are connected. At the same time, the power source and drive signal are obtained, and the detection target event such as fire and intruder is monitored. When the detection target event is detected, the alarm signal is output to the signal line. A body 20 having a flat frustoconical outer shape made of resin, a protective cover 21 that covers the tip of the body 20 to protect the sensor portion (not shown), and an EEPROM (not shown) incorporated in the body 20 Z)).
[0013]
The sensor head 2 includes an opposing recess 22 in a portion facing the sensor base when attached to the sensor base. A disk-shaped stepped portion 22a is formed in the central portion of the opposed recess 22 and is electrically connected to a signal terminal (not shown) provided in the sensor base near the periphery of the stepped portion 22a. Address setting terminals 22b and 22b are provided. The address setting terminals 22b and 22b are connected to a control unit (not shown) for controlling an EEPROM which is a memory that can be electrically erased and rewritten. On the inner wall 22c of the opposed recess 22, lock claw portions 22d and 22d projecting inward are formed, which lock when the sensor head 2 is engaged and attached to the sensor base.
[0014]
The sensor address setting tool 1 includes a synthetic resin case 10. When viewed from the front, the case 10 has a substantially rectangular shape with corners slightly rounded as shown in FIG. 2, and when viewed from the side, the case 10 has an inverted L shape as shown in FIG. The sensor address setting tool 1 has a shape as shown in FIG. 4 in plan view, and has an arcuate surface portion 11 corresponding to guide means formed by projecting one side of a rectangle.
[0015]
The sensor address setting tool 1 has a power indicator lamp 12a, a dead battery indicator lamp 12b, an address number indicator section 12c, an address number input key 12d, a display erase key 12e, and an address write key 12f on the front side. And an address read key 12g.
[0016]
The power indicator lamp 12a is lit when the power switch 12h shown in FIG. 3 is turned on and the sensor address setting tool 1 is in an operating state. The battery exhaustion indicator lamp 12b lights up to notify the battery exhaustion when the battery is exhausted and the voltage drops. The address number display unit 12c displays the address number read by the sensor address setting tool 1 from the EEPROM of the sensor head, or operates the address number input key 12d to write the address number to the EEPROM of the sensor head. Is displayed.
[0017]
The address number input key 12d is composed of ten key switches from “0” to “9”. The display part erase key 12e is operated to erase the display displayed on the address number display part 12c. The address write key 12f is operated when the number displayed on the address number display unit 12c is written as address data in the EEPROM. The address read key 12g is operated when reading the address number already written in the EEPROM from the sensor head 2 .
[0018]
The sensor address setting tool 1 includes a battery case lid 13 as shown in FIG. In addition, as shown in FIG. 4, the sensor address setting tool 1 writes the address data to the EEPROM of the sensor head 2 on the top surface portion or reads the address data from the EEPROM. Connection terminals 14 and 14 are provided to be brought into electrical contact with the address setting terminals 22b and 22b.
[0019]
The circular arc surface portion 11 of the sensor address setting tool 1 is a curved surface that is in close contact with the inner wall 22 b of the opposing recess 22 of the sensor head 2. The width L ₁ of the sensor address setting device 1 circular surface part 11, the locking claw portion 22d formed on the inner wall 22c of the opposed recesses 22, the distance L ₂ of the 22d, and is adapted to substantially coincide. The connection terminals 14 and 14 and the address setting terminals 22b and 22b of the sensor address setting tool 1 are such that the protruding arc surface 11 of the sensor address setting tool 1 is the inner wall 22c of the opposing recess 22 of the sensor head 2. When the contact terminals 14 and 14 are in close contact with each other, the connection terminals 14 and 14 are arranged so as to be in contact with the corresponding address setting terminals 22b and 22b of the sensor head 2, respectively.
[0020]
Therefore, in the sensor address setting tool 1 as described above, an address can be set in the EEPROM of the sensor head 2 as follows. That is, the address setting operator fits the arcuate surface portion 11 of the sensor address setting tool 1 between the lock claw portions 22d and 22d formed in the opposing concave portion 22 of the sensor head 2, and then addresses them. The sensor head 2 is brought into close contact with the inner wall 22c of the opposing recess 22.
[0021]
Then, the positions of the connection terminals 14 and 14 of the sensor address setting tool 1 with respect to the opposing recess 22 of the sensor head 2 are uniquely determined _{, and the} connection terminals 14 and 14 correspond to the address setting terminals 22b and 22b of the corresponding sensor head 2, respectively. 22b, respectively. Moreover, since the arcuate surface 11 is inserted between the lock claws 22d and 22d, even if the address number input key 12d of the sensor address setting tool 1 is operated, the address setting terminals 22b and 22b Contact between the connection terminals 14 and 14 is not easily released, and address writing and address reading are less likely to fail, so that efficient address setting work can be performed.
[0022]
Note that the guide means in the sensor address setting tool 1 of the above-described embodiment is the arc surface portion 11 having an arc surface shape, but this shape is not limited, and the guide head of the facing recess 22 of the sensor head is not limited. It is appropriately deformed according to the inner wall 22c, and may be a polygonal surface portion or a complicated curved surface portion.
[0023]
【The invention's effect】
According to the first aspect of the present invention, when the guide means protrudingly formed on the case of the sensor address setting tool comes into contact with the inner wall of the opposing recess of the sensor head, the connection terminal of the sensor address setting tool is detected. Because it is in electrical contact with the address setting terminal of the sensor head, positioning of the connection terminal of the sensor address setting tool with respect to the address setting terminal of the sensor head is very easy to perform, and the address setting work efficiency is improved. The sensor address setting tool can be provided.
[0024]
According to the second aspect of the present invention, the guide means is provided as a contact portion that is provided at the tip of the sensor address setting tool and is in intimate contact with the inner wall of the opposing recess. In addition to the effect, the connection terminal of the sensor address setting tool can be reliably brought into contact with the address setting terminal of the sensor head without being nervous for positioning, further improving the address setting work efficiency. There is an effect that an excellent sensor address setting tool can be provided _.
[0025]
According to the third aspect of the invention, the pair of lock claws used when the sensor head is engaged and attached to the sensor base is used to oppose the contact portion at the tip of the sensor address setting tool. In addition to the effect of the invention of claim 2, the sensor head is not required to be provided with a special protrusion for positioning in addition to the effect of the invention according to claim 2. In addition, an excellent sensor address setting tool can be provided _.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a state where a sensor address setting tool according to an embodiment of the present invention is connected to a sensor.
FIG. 2 is a front view showing the sensor address setting tool.
FIG. 3 is a side view showing the sensor address setting tool.
FIG. 4 is a plan view showing the sensor address setting tool.
[Explanation of symbols]
1 Sensor address setting tool 2 Sensor head 11 Guide means (this section)
14 Connection terminal 22 Opposite recess 22b Address setting terminal 22c Inner side wall 22d Lock claw

Claims (3)

It is configured to be detachable from the sensor base attached to the construction material, and incorporates an electrically writable and erasable nonvolatile memory for storing addresses, and an address setting terminal in a concave portion facing the sensor base. A sensor address setting tool for setting an address of a sensor head comprising: a connection terminal that is in electrical contact with the address setting terminal; and the connection terminal is electrically connected to the address setting terminal. Guide means that abuts against the inner wall of the opposing recess when contacting the guide , and the guide means that abuts against the inner wall of the opposing recess protrudes from the case of the sensor address setting tool. Sensor address setting tool. The sensor address setting tool according to claim 1, wherein the guide means is a contact portion that is provided at the tip of the sensor address setting tool and is in close contact with the inner wall of the opposing recess. 3. The sensor according to claim 2, wherein the abutting portion that is in close contact with the sensor is fitted between a pair of lock claws used when the sensor head is engaged and attached to the sensor base. Address setting tool.

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