JP2006237911A - Wireless transmitter for operating information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology capable of surely detecting a taking-seat state and a leaving-seat state without the need for provision of a power supply in an apparatus for detecting the attendance. <P>SOLUTION: An attendance sensor 2 incorporating a DC generator and a wireless transmitter is provided on a coupling part between a leg part and a seat part of a chair 1. When the seat part is moved up down by a taking-seat operation and a leaving-seat operation, the generator generates power. The taking-seat state or the leaving-seat state is discriminated depending on the polarity of a generated voltage of the generator. The generated power of the generator activates the wireless transmitter, which transmits information of the taking-seat state or the leaving-seat state. A receiver 3 receives the information and transmits the information to a management apparatus via a network 4. The taking-seat state and the leaving-seat state can surely be detected without the provision of a power supply in this way. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an operation information wireless transmitter, and more particularly to an operation information wireless transmitter that does not require a power source.

  Conventionally, there is an apparatus that detects whether a person is sitting on a chair and transmits presence information to a center apparatus. For example, there is a method of detecting whether or not a person is sitting on a chair with a pyroelectric infrared sensor. There is also a method for detecting whether a person is sitting on a chair by reflection of ultrasonic waves or radio waves. Further, there is a method of detecting the seating of a person on the seat surface of a chair using a pressure-sensitive detector. Some examples of the prior art for detecting presence are given below.

  The “automatic presence display system” disclosed in Patent Document 1 is an automatic presence display system with high information accuracy that eliminates complicated input operations that do not require the person to input presence information. A pressure limit switch that detects presence / absence signals based on body weight is attached to the chair. This pressure limit switch is connected to the signal processing device. A transmitting device that transmits the presence / absence signal detected by the pressure limit switch by radio waves is attached to the chair. A receiving device for receiving this signal is attached to the desk. The receiving device may be connected to the signal processing device. Further, an infrared sensor that detects the presence / absence of the occupant by detecting the reflection of the infrared beam irradiated to the occupant may be mounted in the seat partition, and the infrared sensor may be connected to the signal processing device.

  The “seating monitoring system” disclosed in Patent Document 2 is a seizing monitoring system that can give an attention to an operator in a short time even when the operator leaves. A server computer on which the database is operating and a client computer for operating the database are provided. This is an absence monitoring system when an operator sits on a chair and operates a client computer. This chair is a chair with a presence sensor that can confirm the presence of an operator. The chair with the presence sensor is connected to the client computer via the presence sensor detection signal cable that transmits the presence sensor detection signal. When the absence of the operator of the client computer is detected by a chair with a presence sensor, the connection with the server computer is disconnected from the client computer side.

The “attended management device” disclosed in Patent Document 3 is a presence management device that can reliably exclude the setting of presence or absence by an unspecified third party. Personal authentication is performed by comparing the employee's fingerprint read by the fingerprint reading sensor with the employee's fingerprint recorded on the employee card. When the personal authentication is obtained, the presence setting or absence setting by the employee is accepted. When an attendance confirmation request for an employee is received, the current setting content of the employee is notified to the presence confirmation request source. Thereby, even if the employee card is stolen by an unspecified third party, it is possible to reliably eliminate the presence or absence setting by the unspecified third party. A person who wants to talk to an employee can also check the employee's presence.
Japanese Unexamined Patent Publication No. 7-37171 Japanese Patent Laid-Open No. 11-296478 JP 2004-363701 A

  However, the conventional presence detection method has the following problems. When detecting with a pyroelectric infrared sensor, it is not detected unless a large operation is continued to some extent. If you are still looking through the documents, you may be considered to be away. On the other hand, even if the person is not seated, it is detected that the person is present each time a person moves around. When detecting by reflection of ultrasonic waves or radio waves, it is difficult to identify a difference between a human body and another object, such as a chair, and thus malfunction is unavoidable. When detecting on the seat surface of a chair by a pressure-sensitive detector, the detection is reliable, but a power cord and a battery must be installed.

  An object of the present invention is to solve the above-mentioned conventional problems, and in an operation information wireless transmitter such as a device for detecting presence, it is possible to reliably detect the direction of operation such as sitting and leaving without using a power source. Is to do.

  In order to solve the above problems, in the present invention, a direct current generator for generating power by movement of a movable member, a direct current generator that is mounted on a movable member and a fixed member that are moved by a user's movement, and a direct current A wireless transmitter that operates with the power generated by the generator, a determination unit that determines whether the operation is a forward operation or a reverse operation based on the polarity of the generated voltage of the DC generator, and operation direction information from the determination unit And a control means for controlling to transmit the data.

  In addition, in the seating away information wireless transmission device mounted on the chair, a DC generator that generates power by the operation of sitting on the chair and the operation of leaving the chair, a wireless transmitter that operates by the generated power of the DC generator, A configuration comprising: a determination unit that determines whether the user is seated or left based on the polarity of the generated voltage of the DC generator; and a control unit that controls the wireless transmitter to transmit information indicating that the user has been seated or left. It was.

  An entrance / exit information wireless transmission device mounted on a gate member that is moved by a person who enters and exits the gate, a direct-current generator that generates electricity by the entrance operation and the exit operation, and a wireless transmitter that operates by the generated power of the DC generator, A determination means for determining whether to enter or exit based on the polarity of the generated voltage of the DC generator, and a control means for controlling the information transmitted from the determination means to be transmitted or received by the wireless transmitter. did.

  With this configuration, it is possible to reliably detect the direction of operation such as sitting and leaving without using a power source.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIGS.

  The first embodiment of the present invention is a direct current generator that rotates according to the vertical movement of a chair, generates power by seating and leaving operations, determines whether seating or leaving is based on the polarity of the generated voltage, and wirelessly uses generated power. This is a seating / seating information wireless transmission chair in which a transmitter is operated and information indicating that the user has been seated or left is transmitted by the wireless transmitter.

  FIG. 1 is a conceptual diagram illustrating a configuration of a seating / seating information wireless transmission chair according to the first embodiment of the present invention. In FIG. 1, a chair 1 is a chair provided with a presence sensor. The presence sensor 2 is a seating away detection means that includes a generator, a control unit, and a wireless transmitter. The receiver 3 is a wireless receiver that receives the seating away information from the presence sensor 2. The network 4 is a communication unit that sends the seating / separation information received by the receiver 3 to the management device.

  FIG. 2 is a conceptual diagram illustrating a power generation mechanism of the seating / seating information wireless transmission chair according to the first embodiment of the present invention. In FIG. 2, the generator 5 is a DC generator that generates power by moving the chair up and down. The wireless transmitter 6 is a transmitter that transmits sitting / seating information. The control unit 7 includes a determination unit that determines whether the user is seated or left based on the polarity of the power generation voltage of the generator, and a control unit that controls the wireless transmitter to transmit information indicating that the user has been seated or left. It is the control means which consists of. Usually, a processor is used, but other circuit elements may be used. The rack support column 8 is a column fixed to the leg portion of the chair. The pinion 9 is a gear that meshes with the rack and changes the vertical movement of the chair into a rotational motion.

  FIG. 3 is a conceptual diagram illustrating a power generation circuit of the seating / seating information wireless transmission chair according to the first embodiment of the present invention. In FIG. 3, the rectifier 10 is an element that makes the output of the generator have a certain polarity. The resistor 11 is an element that transmits the output polarity of the generator to the control unit. The capacitor 12 is an element that temporarily stores the output of the generator.

  The operation of the seating / seating information wireless transmission chair according to the first embodiment of the present invention configured as described above will be described. First, an outline of the operation will be described with reference to FIG. When a person sits on the chair 1 and stands up from the chair 1, power is generated by the generator in the presence sensor 2. Seating / leaving is determined from the polarity of the generated voltage, and seating / leaving information is transmitted to the receiver 3 wirelessly. The receiver 3 sends sitting / separating information to a management device (not shown) via the network 4. Since the subsequent operation is the same as that of the conventional apparatus, detailed description is omitted.

  Detailed operation will be described with reference to FIGS. When a person's weight is applied to the seat surface of the chair 1, the seat surface of the chair 1 is pushed into the leg. On the other hand, when standing up from the chair 1, the seat surface returns. Using this movement, the generator 5 generates power. Depending on the direction of rotation of the DC generator (up and down of the chair 1 in FIGS. 1 and 2), the polarity of the generated voltage is reversed.

  In a very slow seating or leaving motion, the generator may not be able to generate a sufficient voltage, so there is a possibility that the seating motion will be detected again after the seating. In order to prevent this, it is necessary to always generate a substantially constant power. For example, it is configured to store energy in the spring until the stroke of the chair due to the seating operation or leaving operation reaches a predetermined length, and when the predetermined stroke is reached, the spring energy is released to generate electricity To do. This can be realized by a mechanism similar to the spring mechanism of the seesaw switch. Alternatively, power generation may be performed in response to a very slow operation, and a fast movement may be slowed by a damper or the like. This can be realized by providing a damper mechanism between the rack and pinion gear and the generator.

  An outline of a circuit that performs power generation and polarity determination is shown in FIG. The generated power is made to have a constant polarity by the rectifier 10 and temporarily stored in the capacitor 12. The wireless transmitter 6 and the control unit 7 are operated by this power. The polarity of the generated voltage is transmitted to the control unit 7 via the resistor 11. In the control part 7, it is determined whether it is seated or away from the polarity of the generated voltage. This sitting / seating information is transmitted via the wireless transmitter 6.

  Power generation is not possible when seated and when no one is sitting on the chair. However, the sitting / seating information may be transmitted only when the user is seated and when the user is standing up. That is, since it is sufficient to transmit information only when power is generated, it is not necessary to store the generated power for a long time. Further, since the DC type is used as the generator, it is possible to determine whether the sitting operation or the leaving operation is performed based on the polarity of the generated DC power. There is no need to prepare a separate seating sensor.

  Each seated sensor 2 is provided with an individual ID so that information on a plurality of chairs 1 can be received by one receiver 3. By transmitting the seating / separation information and the ID at the same time, the receiver 3 can obtain the seating / separation information individually. When a plurality of occupancy sensors 2 use the same wireless channel, a wireless collision occurs if they are seated at the same time. There is a method in which the presence sensor 2 is also provided with a reception function and retransmits if necessary. However, since the amount of data to be transmitted is very small, the presence sensor 2 side has only a transmitter, and even if it transmits multiple times at different time intervals for each ID, the reliability is sufficiently high. Can be obtained.

  The presence sensor 2 and the receiver 3 of the chair 1 can collectively display and manage whether or not each person is seated on his / her seat using a presence status indicator or the like. This sitting / seating information can also be provided to the telephone system in real time. In this case, if it is set in advance to make a call when seated, the call can be automatically made when the other party returns to his / her seat.

  As described above, in the first embodiment of the present invention, the seating / seating information wireless transmission chair is generated by the generator by the seating operation and the seating operation, and it is determined whether the seating or leaving is based on the polarity of the generated voltage. Since the wireless transmitter is operated by electric power and information indicating that the user has been seated or left is transmitted by the wireless transmitter, seating and leaving can be reliably detected without a power source.

  Embodiment 2 of the present invention is a generator attached to a gate bar, which generates power by an entry operation and an exit operation, determines whether it is an entry or exit based on the polarity of the generated voltage, operates a wireless transmitter with the generated power, Alternatively, it is an entrance / exit information wireless transmission gate that transmits information indicating that it has started by a wireless transmitter.

  A radio transmitter with a DC generator is provided on a gate bar that is rotated by the movement of a person when the person passes. Electricity is generated by the rotation of the gate bar, the direction of entry / exit is detected in the rotation direction, and entry / exit information is transmitted using the generated power. Not only a gate bar but also a door or a gate that opens in both directions may be used. A similar function can be achieved if a radio transmitter with a generator is attached to the hinge portion of the door or gate. Since there is no need to provide a battery, maintenance is easy. Since no power line or communication line is required, installation work is easy. Since no standby power is required, there is no maintenance cost.

  With the same configuration, it is possible to monitor opening and closing of doors of unmanned buildings. Moreover, since it can detect if there exists a motion of the grade which a generator operates, the motion of the wire of a fence can also be detected.

  The sitting / separating information wireless transmission chair of the present invention is most suitable as a seating sensor of a seating display system. The motion information wireless transmitter can also be used as a device that detects the movement of gates and doors and counts the number of people entering and exiting the gates.

It is a conceptual diagram which shows the structure of the seating absence / seating information wireless transmission chair in Example 1 of this invention. It is a conceptual diagram which shows the electric power generation mechanism of the seating separation information radio transmission chair in Example 1 of this invention. It is a conceptual diagram which shows the electric power generation circuit of the seating separation information radio transmission chair in Example 1 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Chair, 2 ... Seat sensor, 3 ... Receiver, 4 ... Network, 5 ... Generator, 6 ... Wireless transmitter, 7 ... Control part, 8 ... post with rack, 9 ... pinion, 10 ... rectifier, 11 ... resistor, 12 ... capacitor.

Claims (3)

  An operation information wireless transmission device that is mounted on a movable member and a fixed member that are moved by a user's operation, wherein the direct-current generator generates power by the movement of the movable member, and the wireless that operates by the generated power of the DC generator A transmitter, a determination unit that determines whether the operation is a forward direction or a reverse direction based on the polarity of the generated voltage of the DC generator, and control so that the wireless transmitter transmits operation direction information from the determination unit And an operation information wireless transmission device.   A seating / seating information wireless transmission device mounted on a chair, wherein a DC generator that generates power by an operation of sitting on the chair and an operation of leaving the chair, and a wireless transmission that operates by generated power of the DC generator A control unit for determining whether to sit or leave based on the polarity of the generated voltage of the DC generator, and control for transmitting information indicating that the seat has been seated or left from the determination unit to be transmitted by the wireless transmitter And a seating / seating information wireless transmission device.   An entrance / exit information wireless transmission device mounted on a gate member moved by a person entering / exiting a gate, a direct-current generator that generates electricity by an entrance operation and an exit operation, and a wireless transmitter that operates by the generated power of the DC generator And determining means for determining whether to enter or exit based on the polarity of the generated voltage of the DC generator, and control means for controlling the information transmitted from the determining means to be transmitted to the wireless transmitter. An entrance / exit information wireless transmission device comprising:

Images