JP3295773B2 - Transmitter of obstacle detection signal in electric shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmitter for detecting an obstacle in an electric shutter.

[0002]

2. Description of the Related Art In general,
In the case of an electric shutter, an obstacle detection sensor for detecting an obstacle when the shutter curtain descends is provided, and an emergency stop is performed based on the detection of the obstacle to improve safety.

When such an obstacle detection sensor is provided on the side of a shutter curtain that moves up and down, it is often used to transmit a detection signal wirelessly (a wireless system using an aerial transmission medium such as radio waves and light waves). ing. In this case, the transmitter is provided on the shutter curtain side, and the transmitter is activated using the battery therein as a power source. Therefore, when the battery is exhausted, a situation may occur in which the emergency stop function based on the detection of an angled obstacle cannot be used effectively while having the emergency stop function. As a countermeasure against this, the user was required to perform maintenance to replace the battery at regular intervals, but the battery consumption was not uniform due to the difference in the frequency of use. It is difficult to use the battery without knowing that the battery has run out.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has as its object to provide a transmitter for an obstacle detection signal in an electric shutter which can eliminate these disadvantages. A detection signal detected by the obstacle detection sensor, an electric shutter configured to perform a stop operation control of the shutter curtain based on an output from a transmitter provided on the shutter curtain side, wherein the transmitter , hand display command of the count number by counting the signal output times each time the signal is output
Based on the input of the operation signal from the operation switch
A counter controller which have been output, when Ru is provided a display unit for displaying the corresponding based on the input of the display command co
In the counter control unit, the number of counts is set in advance.
If it is determined that the value exceeds the
Even if there is no operation signal from the switch,
And an automatic output means for automatically outputting a display command . According to the present invention, the number of transmissions of the obstacle detection signal can be surely confirmed by this configuration. In this one, the counter control unit:
It is characterized in that an alarm means for issuing an alarm in response to an output command from the automatic output means is connected. In these, the display command from the automatic output means and the display command from the display control means can be characterized in that they are identified so as to have mutually different display patterns.

[0005]

Next, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a shutter curtain of an electric shutter built at the opening of the building. The shutter curtain 1 is wound around a winding drum 2a inside the shutter case 2 provided above the opening. A switchgear 3 associated with a switch operation of a switch (not shown).
The shutter curtain 1 that is wound or unwound based on the forward / reverse drive is guided by guide rails 4 installed on the left and right of the opening to move up and down, thereby opening and closing the opening. Each of them is the same as before. Reference numeral 3a denotes an open / close control unit for controlling the drive of the switch 3, and 3b denotes a chain transmission mechanism for interlocking the switch 3 and the winding drum 2a.

[0006] The shutter curtain 1 is formed by a plurality of slats 5 connected in a series and a seat plate (seat plate slat) 6 at the lowermost end. An example of a seat plate switch (tape switch) 6a is integrally incorporated. 7 is the seat plate 6
The transmitter 7 is configured to transmit an obstacle detection signal (including a floor contact detection signal) detected by the seat panel switch 6a. Then, the transmitted signal is received by the receiver 9 from the receiving unit 9a provided in the lintel 8, and the opening / closing control unit 3a outputs an emergency stop command to the switchgear 3 based on the received obstacle detection signal. Emergency stop.

Now, a display operation switch 10 and a reset switch 11 are connected to the transmitter control section 7a provided in the transmitter 7, in addition to the seat plate switch 6a. The control section 7a is provided with an input signal discriminating section 12 for discriminating switch signals inputted from these switches, and when the detection signal is from the seat panel switch 6a, the detection signal output activation section 13 transmits the signal. A transmission command is output to the unit 7b, and accordingly, an obstacle detection signal is output to the transmission unit 7b as described above. On the other hand, the control unit 7 a is provided with a counter control unit 14 in addition to the detection signal output activation unit 13. The counter control unit 14 is configured such that the detection signal output activation unit 13
b, and outputs a display command to the display unit 15 having a liquid crystal display panel based on the input of the operation signal of the display operation switch 10. The control procedure will be described next.

Now, an example of a control procedure by the counter control unit 14 will be described with reference to a flowchart of FIG. First, with the system started,
It is determined whether or not the reset switch 11 has been pressed. The pressing operation of the reset switch 11
In order to avoid a mischievous pushing operation, it is preferable to take measures such as, for example, that the pushing operation must be continued for one second. In order to further ensure such mischief, consideration can be given, for example, to such a setting that the reset can be performed only by inputting a cryptographic switch operation method known only to a maintenance company. When it is determined that such a reset signal has been input, the number of times of detection stored in a memory described later is reset to zero.
On the other hand, when it is determined that there is no signal, it is determined whether or not a signal has been output from the detection signal output activation unit 13. If it is determined that a signal has been output, the output count is incremented, and this is changed to a new output count and stored in memory.

Next, it is determined whether or not the stored number of outputs exceeds a preset number of times.
When it is determined that the value has exceeded, the first display command is automatically output to the display unit 15 and the alarm unit 16. The display unit 1 to which the first display command has been input
5 displays the number of times of output (the number of times of integration) by blinking, for example, to prompt the administrator to visually check. On the other hand, as the alarm means 16, one that emits an electronic sound or one that emits light such as a light emitting diode can be adopted, and these can be selected as necessary.

Next, when it is determined that the number of outputs has not reached the set number of times, it is determined whether or not a switch operation from the display operation switch 10 has been performed. During the set timer time, a second display command is output to the display unit 15. This second display command is preferably different from the first display command, for example, by continuous display. Further, it is set so that the display by the display unit 15 is not performed when the switch operation is not performed.

In the embodiment of the present invention constructed as described above, the shutter curtain 1 is driven by the forward / reverse drive of the switch 3.
The shutter curtain 1 is fully closed and the floor surface of the seat switch 6a is detected, or an obstacle is detected along the way, so that the obstacle detection signal is transmitted as a wireless signal. Each time the output is made, the counter control unit 14 increments the output count and stores it, and displays this when necessary.

As described above, according to the embodiment of the present invention, the number of transmissions of the transmitter 7 can be easily known from the display unit 15 provided in the transmitter 7, so that the need for battery replacement is eliminated. In addition, even the user side can easily know the target of battery replacement time.

Furthermore, in this device, the display of the number of outputs is performed only for a predetermined timer time when the display operation switch 10 is operated, so that the consumption of the battery is smaller than that which is continuously displayed. It has the advantage of saving time. Moreover, in this case, when the number of outputs exceeds a preset number, the display is automatically performed without operating the display operation switch 10, so that the risk of missing the battery replacement can be effectively avoided. . In this case, since the display is different from the display by the switch operation of the display operation switch 10, the display to the administrator is made.
The fact that the number of times of opening and closing required for maintenance has been reached is notified, but this has the advantage that it becomes more certain by the activation of the alarm means 16.

[0014]

In summary, since the present invention is configured as described above, the number of output times of the signal output from the transmitter is counted by the counter control unit and displayed on the display unit. You can easily know by looking at the part, so you need to replace the transmitter battery,
In addition, even the user can easily know the approximate timing of battery replacement.

[Brief description of the drawings]

FIG. 1 is a front view of an electric shutter.

2A is a plan view of a transmitter, and FIG. 2B is a front view of the transmitter.

FIG. 3 is a block circuit diagram showing a control procedure by a counter control unit.

FIG. 4 is a flowchart illustrating a control procedure by a counter control unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shutter curtain 3 Switch 6 Seat 6a Seat switch 7 Transmitter 9 Receiver 10 Display operation switch 11 Reset switch 12 Input signal discriminating part 13 Detection signal output starting part 14 Counter control part 15 Display part 16 Alarm means

Claims (3)

(57) [Claims] An electric shutter configured to perform a stop operation control of a shutter curtain based on an output from a transmitter provided on a shutter curtain side, the detection signal being detected by an obstacle detection sensor. Each time a signal is output, the operation switch that counts the number of signal outputs and displays the count number display command manually can be operated.
A counter control unit that outputs, based on the input of the operation signal from the pitch, Rutotomoni provided a display unit for displaying the corresponding based on the input of the display command, the counter control
Section indicates that the number of counts exceeds the preset value.
When it is determined that the operation signal from the operation switch
Display command is automatically output to the display even though there is no
A transmitter for an obstacle detection signal in an electric shutter, comprising: 2. The transmitter according to claim 1, wherein alarm means for receiving an output command from the automatic output means and issuing an alarm is connected to the counter control unit. 3. The display command from the automatic output unit and the display command from the display control unit according to claim 1 or 2 ,
A transmitter for an obstacle detection signal in an electric shutter, wherein the transmitter is identified to have different display patterns.