JP5376620B2 - Sensor information reporting system, sensor information reporting system for elevators, sensor information reporting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sensor information report system reducing sensor wiring work and relaxing limits on sensor installation. <P>SOLUTION: Sensors 1, 2, 3, 4 generate detected sensor information as frequency sound of a DTMF signal, output it as wireless information from built-in speakers, and input it into the microphone of an interphone 15. The interphone 15 transfers the received frequency sound of the DTMF signal to a report device 11 through a wire circuit 35. The report device 11 processes sensor information corresponding to the transferred frequency sound of the DTMF signal, and transmits it to a maintenance center 12 through a public network 13. When outputting a transfer command of the sensor information, the report device 11 generates frequency sound of the DTMF signal corresponding to the transfer command and outputs it as wireless information from the speaker of the interphone 15 through the wire circuit 35. The sensors 1, 2, 3, 4 receive the frequency sound of the DTMF signal from the interphone 15 by built-in microphones. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a sensor information reporting system, an elevator sensor information reporting system, and a sensor information reporting method.

  For sensor information reporting systems that report various types of sensor information to external devices, in the case of the conventional technology, a configuration in which a sensor that performs a sensing operation and a reporting device that reports to an external device are connected via a wired line It was made up of. For example, a conventional configuration of an elevator notification device such as Japanese Unexamined Patent Publication No. 2005-145686 “Elevator Emergency Contact Device” of Patent Document 1 will be described with reference to FIG. FIG. 4 is a system configuration diagram showing a system configuration of a conventional elevator sensor information reporting system.

In FIG. 4, various sensors (sensor 1A, sensor 2A, sensor 3A, sensor 4A) are connected to the reporting device 11A via wired lines 31, 32, 33, and 34. If the / OFF information is an analog value sensor, the information device 11A reads the information related to the analog value via a wired line, thereby executing various corresponding processes. The processed result is reported from the reporting device 11A to the maintenance center 12 via the public network 13.
JP 2005-145686 A (page 3)

  However, in the conventional sensor information reporting system, for example, in the sensor of the conventional reporting device 11A as shown in FIG. 4, the sensor and the reporting device 11A are connected by wired lines 31, 32, 33, and 34. Therefore, there are the following problems.

  A first problem is that when a maintenance worker tries to install various sensors, a wiring space may not be secured. For example, in the case of the elevator sensor information reporting system shown in FIG. 4, various sensors (sensor 1A, sensor 2A, sensor 3A, sensor 4A) are used to secure a space in the elevator hoistway 22 for reasons such as raising and lowering the elevator car 21. ) Wiring is limited, and in some cases, there are places where it cannot be installed.

  The second problem is that there may be a danger in the wiring work of the worker between the sensor and the reporting device. For example, in the case of the elevator sensor information reporting system shown in FIG. 4, a maintenance worker falls when performing wiring work of various sensors (sensor 1A, sensor 2A, sensor 3A, sensor 4A) in the elevator hoistway 22. The higher the building is, the more dangerous the wiring work is.

  The present invention has been made in view of such circumstances, and is intended to be wireless by transmitting and receiving sensor information transferred between various sensors and a reporting device using DTMF (Dual Tone Multi Frequency) sound. Therefore, the purpose is to provide a mechanism that can reduce the wiring work of the sensor and ease the restrictions on the installation of the sensor.

  In other words, the sensor information is output as DTMF sound from the speakers built into the various sensors, received by the interphone microphone and transferred to the reporting device, or directly received by the reporting device microphone. The object is to enable wireless transmission of sensor information transmitted from the sensor. For example, in the case of an elevator sensor information reporting system as shown in FIG. 4, instead of connecting wired lines 31, 32, 33, 34 to various sensors (sensor 1A, sensor 2A, sensor 3A, sensor 4A), various sensors are connected. Built-in speaker, sensor information from the built-in speaker is input to the microphone of the intercom 15 in the elevator car 21 and transferred to the reporting device 11A, or the reporting device is also equipped with a microphone and sensor information from various sensors. Is directly input to the microphone of the reporting device.

  On the other hand, an instruction to transfer sensor information from the reporting device to various sensors is transferred from the reporting device to the interphone and transmitted as DTMF sound from the speaker of the interphone or directly as DTMF sound from the speaker of the reporting device. An object of the present invention is to enable wireless transmission of sensor information transmitted from various sensors by receiving the requested sensor information from a built-in speaker. For example, in the case of the elevator sensor information reporting system of FIG. 4, the sensor information transfer instruction to various sensors transferred from the reporting device 11 </ b> A to the interphone 15 in the elevator car 21 is sent to the speaker of the interphone 15 in the elevator car 21. Or output a DTMF sound from the speaker of the notification device and input it to microphones built in various sensors. Each sensor acquires instructed sensor information, outputs it as a DTMF sound from a speaker built in each sensor, inputs it to the microphone of the intercom 15 in the elevator car 21, and forwards it to the reporting device, or sends it to the reporting device. Input directly to the provided microphone.

  Furthermore, by installing a built-in power source such as a battery in various sensors, it is possible to wirelessly perform DTMF sound output operation from a speaker and DTMF sound input operation to a microphone.

  In order to solve the above-described problems, the sensor information reporting system, the elevator sensor information reporting system, and the sensor information reporting method according to the present invention employ the following characteristic configuration.

  (1) In a sensor information reporting system including a reporting device that receives sensor information from a sensor that detects a state of a monitoring target and reports a processing result to an external device, the sensor includes a DTMF (Dual Tone Multi Frequency) includes a speaker that outputs a frequency sound of a signal, generates a frequency sound of a DTMF signal corresponding to the sensor information detected by the sensor, outputs the frequency sound from the speaker, and the notification device transmits a wired line to the notification device. The frequency sound of the DTMF signal from the sensor is received by the microphone of the interphone connected in Step 1, and the notification device is transferred via the wired line, and the sensor information corresponding to the frequency sound of the received DTMF signal is processed. A sensor information reporting system for transmitting a result to the external device.

  According to the sensor information reporting system, elevator sensor information reporting system, and sensor information reporting method of the present invention, the following effects can be obtained.

  The first effect is that by limiting the sensor information from various sensors and the instruction signals to the various sensors to be wireless, it is possible to greatly reduce the restrictions on the sensor installation location.

  The second effect is that maintenance workers' sensor installation / wiring work is not required, thereby reducing maintenance worker accidents associated with sensor installation / wiring work.

  The third effect is that, by wirelessly transmitting sensor information from various sensors and instruction signals to the various sensors, it is possible to greatly reduce the work time of maintenance workers for installing and wiring the sensors. .

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a sensor information reporting system, an elevator sensor information reporting system, and a sensor information reporting method according to the present invention will be described with reference to the accompanying drawings.

(Features of the present invention)
Prior to the description of the embodiments of the present invention, an outline of the features of the present invention will be described first. The present invention relates to a sensor information reporting system including a reporting device that reports processing results obtained by processing sensor information from various sensors to an external device, and transmits sensor information from speakers built in the various sensors to DTMF. Outputs as sound (Dual Tone Multi Frequency: frequency sound consisting of combined signals of high frequency and low frequency in the audible frequency band), and is received by the interphone microphone connected to the reporting device via a wired line. It is characterized in that the sensor information transmitted from various sensors can be wirelessly transmitted by being transferred to or directly received by the microphone of the reporting device.

  On the other hand, the sensor information transfer instruction from the reporting device to various sensors is transferred to the interphone connected via a wired line, and transmitted as DTMF sound from the speaker of the interphone or directly as DTMF sound from the speaker of the reporting device. By receiving the instructed sensor information from the built-in speaker by receiving it with the microphones built in the various sensors, the transfer instructions to the various sensors sent from the reporting device or intercom, It is characterized by enabling wireless transmission of both sensor information.

  Furthermore, in order to send sensor information and receive sensor information transfer instructions that have been made wireless by DTMF sound, various sensors have built-in power supplies such as speakers and microphones that operate microphones. By installing, various sensors can be operated wirelessly.

  That is, the present invention incorporates a microphone and a speaker for transmitting and receiving DTMF (Dual Tone Multi Frequency) sound as a radio signal to various sensors such as a contact sensor and an analog value input sensor that collect various sensor information, and further includes a microphone. Various sensors are equipped with a built-in power source such as a battery for enabling transmission / reception of DTMF sound by a speaker and a speaker.

  Further, in preparation for the case where DTMF sound is directly transmitted and received between various sensors and the notification device, the notification device is also provided with a microphone and a speaker that transmit and receive DTMF sound as a radio signal. The reporting device processes the sensor information from various sensor information, reports the processing result to an external device such as a maintenance center, etc., and receives an instruction from the external device such as a maintenance center to receive various sensors. A transfer instruction for instructing transfer of sensor information according to the instruction is transmitted as a DTMF sound to various sensors directly or via an interphone connected by a wired line.

  In the following description of the embodiment, as an example of the sensor information reporting system according to the present invention, the case of an elevator sensor information reporting system for monitoring the operation state of an elevator is taken as an example, and the embodiment will be specifically described. However, the present invention is not limited to such an elevator, and can be widely applied to any system as long as it is a system that collects sensor information, such as an observation system and a security system for security. Needless to say.

(Configuration of the embodiment)
First, FIG. 1 shows an example of the system configuration of an elevator sensor information reporting system as an example of the system configuration of the sensor information reporting system according to the present invention. As shown in FIG. 1, the elevator sensor information reporting system includes various sensors (sensor 1, sensor 2, sensor 3) arranged in an elevator car 21, an elevator hoistway 22, an elevator motor controller 14, and the like. , Sensor 4), notification device 11 and maintenance center 12 which is an external device at least as basic components.

  The reporting device 11 processes sensor information from various sensors and transmits the information to the maintenance center 12 as information on the elevator monitoring result, or receives an instruction from the maintenance center 12 and issues an instruction to transfer sensor information in accordance with the instruction. 1 has a function of transmitting to various sensors, and FIG. 1 shows a case where the maintenance center 12 is connected via a public network 13 such as an analog network or a PHS network. Yes. However, the maintenance center 12 may be connected not by the public network 13 but by a dedicated network, may be connected by a digital network, or may be connected by a dedicated line.

  In addition, the notification device 11 and the notification device 11 and a wired line when receiving sensor information from various sensors (sensor 1, sensor 2, sensor 3, sensor 4) or transmitting a transfer instruction to various sensors. The case where it transmits and receives via the intercom 15 which is connected in 35 and installed in the elevator car 21 is shown. However, in some cases, the notification device 11 is equipped with a speaker and a microphone for transmitting / receiving DTMF sound, and directly transmits / receives a radio signal using DTMF sound to / from various sensors without using the interphone 15. You may comprise.

  Various sensors (sensor 1, sensor 2, sensor 3, sensor 4) are equipped with the following characteristic circuits.

(1) Installation of speakers and / or microphones in various sensors For various sensors (sensor 1, sensor 2, sensor 3, sensor 4) such as contact sensors and analog value input sensors that are components in the sensor information reporting system for elevators Each incorporates a speaker for outputting DTMF (Dual Tone Multi Frequency) sound and / or a microphone for input. In the present embodiment, the case where both the speaker and the microphone are provided is shown, but depending on the case, the speaker may be constituted only by the speaker.

  The sensor information of the sensor 1 installed in the elevator hoistway 22, the sensors 2 and 3 installed in the elevator car 21, and the sensor 4 installed in the elevator motor control unit 14 is obtained from the built-in speaker. And is input to the microphone of the interphone 15 installed in the elevator car 21. The sensor information received by the microphone of the intercom 15 is transferred to the notification device 11 via the wired line 35. The reporting device 11 that has received the sensor information performs various processes as described above, and reports the processing results to the maintenance center 12 via the public network 13.

  In the configuration of FIG. 1, as described above, for example, depending on the elevator installation environment and the wireless communication environment with various sensors, the notification device 11 is configured to include a microphone for inputting DTMF sound. The notification device 11 can directly receive sensor information from various sensors (sensor 1, sensor 2, sensor 3, sensor 4) without using the intercom 15 in the elevator car 21. is there.

  On the other hand, an instruction to transfer sensor information from the reporting device 11 to various sensors (sensor 1, sensor 2, sensor 3, sensor 4) is transferred to the interphone in the elevator car 21 via the wired line 35. The intercom 15 outputs a sensor information transfer instruction transmitted from the notification device 11 to various sensors as a DTMF sound from the speaker, and is built in each of the various sensors (sensor 1, sensor 2, sensor 3, sensor 4). Input to the selected microphone. In response to the transfer instruction, the various sensors (sensor 1, sensor 2, sensor 3, sensor 4) acquire sensor information, output them as DTMF sounds from the speakers built in the various sensors, and the interphone 15 in the elevator car 21. Input to the microphone. The sensor information received by the microphone of the intercom 15 is transferred to the notification device 11 via the wired line 35.

  In the configuration of FIG. 1, as described above, the notification device 11 is configured to include a speaker that outputs DTMF sound and an input microphone, and various sensors (sensor 1, sensor 1) without using the interphone 15. It is also possible to adopt a configuration in which the notification device 11 directly performs the operation of transmitting a transfer instruction to the sensor 2, the sensor 3, and the sensor 4) and the operation of receiving sensor information from various sensors.

(2) Built-in power supply such as a battery to various sensors In order to transmit sensor information by DTMF sound and receive a transfer instruction of sensor information instructed by the reporting device 11 by DTMF sound, various sensors (sensor 1 The sensor 2, the sensor 3, and the sensor 4) are equipped with a built-in power source such as a battery to enable wireless transmission and reception of sensor information and sensor information transfer instructions.

(Description of operation example of embodiment)
Next, as an example of the operation of the elevator sensor information reporting system of FIG. 1, the sensor information of various sensors (sensor 1, sensor 2, sensor 3, sensor 4) is transferred to the maintenance center 12 via the reporting device 11. The case will be described. First, the case where the sensor 1 installed in the elevator hoistway 22 is a contact sensor that detects only ON / OFF will be described.

  When the contact sensor of the sensor 1 is turned ON, the frequency sound of the DTMF signal “1” is output from a speaker built in the contact sensor for a predetermined time a seconds (for example, 1 second) and installed in the elevator car 21. Input to the microphone of the intercom 15. The intercom 15 transfers the DTMF signal “1” that has been input to the microphone and continues for a second to the notification device 11 via the wired line 35.

  In the notification device 11, frequency sounds and durations of all DTMF signals output as sensor information from various sensors are preset and registered as sensor information registration data. Therefore, since the sensor information of the sensor 1 of the DTMF signal “1”, which is transferred from the intercom 15 and continues for a second, is registered in advance in the sensor information registration data, the notification device 11 has been input with the sensor information registration data. It is determined that the sensor 1 is turned on by comparing with the DTMF signal “1” that continues for a second. The reporting device 11 transmits information indicating that the sensor 1 is turned on as a determination result to the maintenance center 12 via the public network 13.

  Next, the case where the sensor 2 installed in the elevator car 21 is also a contact sensor that detects only ON / OFF will be described.

  When the contact sensor of sensor 2 is turned on, the frequency sound of the DTMF signal “2” is output from the speaker built in the contact sensor for a predetermined period of time b seconds (for example, 1 second) and installed in the elevator car 21 Input to the microphone of the intercom 15. The intercom 15 transfers the DTMF signal “2” that has been input to the microphone and continues for b seconds to the notification device 11 via the wired line 35.

  As described above, in the reporting device 11, the frequency sounds and durations of all DTMF signals output as sensor information from various sensors are set and registered in advance as sensor information registration data. Therefore, since the sensor information of the sensor 2 of the DTMF signal “2” that has been transferred from the interphone 15 and continues for b seconds is registered in advance in the sensor information registration data, the notification device 11 has been input with the sensor information registration data. It is determined that the sensor 2 is turned on by comparing with the DTMF signal “2” lasting for b seconds. The reporting device 11 transmits information indicating that the sensor 2 is turned on as a determination result to the maintenance center 12 via the public network 13.

  Next, the case where the sensor 3 installed in the elevator car 21 is a temperature sensor that measures the temperature in the elevator car 21 will be described.

  When the maintenance staff of the maintenance center 12 wants to know the temperature in the elevator car 21, a command signal instructing transfer of the temperature measurement result is sent from the maintenance center 12 to the notification device 11 via the public network 13. . When the notification device 11 receives the command signal from the maintenance center 12, the notification device 11 processes the received command signal, and transmits the DTMF from the speaker of the interphone 15 in the elevator car 21 via the wired line 35. The frequency sound of the signal “3” is output for a predetermined time c seconds (for example, 1 second).

  The DTMF signal “3” that is output from the speaker of the intercom 15 and continues for c seconds is input to the microphone of the sensor 3 installed as a temperature measurement sensor in the elevator car 21. In the processing unit built in the sensor 3 for temperature measurement, frequency sounds and durations of all DTMF signals for the sensor 3 inputted as instruction signals to the microphone are preset as instruction signal registration data. It is registered. Therefore, since the instruction signal for the sensor 3, which is the DTMF signal “3” for c seconds that has been input to the microphone, is registered in advance in the instruction signal registration data, the sensor 3 has been input with the instruction signal registration data. By comparing with the DTMF signal “3” lasting c seconds, it is determined that the temperature return instruction in the elevator car 21 has been received.

  The temperature sensor of the sensor 3 measures the temperature in the elevator car 21, and when the measured temperature notification signal is 20 ° C., for example, when it is DTMF signal “320”, 25 ° C., As a DTMF signal “325”, a DTMF signal with a frequency sound proportional to the temperature is generated as an intermittent sound for a predetermined time d seconds from a built-in speaker (for example, the first digit is turned on for 1 second and turned off for 1 second) After that, the second digit is turned on for 1 second, turned off for 1 second, and then the third digit is turned on for 1 second). Here, in the three-digit number string of the DTMF signal serving as the temperature notification signal, the first digit is “3” indicating the sensor information of the temperature sensor, and the second digit, 3 The number in the digit indicates the measured temperature.

  For example, the DTMF signal “320” output from the microphone of the sensor 3 intermittently for d seconds is input to the microphone of the interphone 15 installed in the elevator car 21. The intercom 15 transfers the DTMF signal “320”, which is intermittently input for d seconds, input to the microphone to the notification device 11 via the wired line 35.

  The reporting device 11 detects the sensor 3 temperature measurement sensor information of the DTMF signal “320” intermittently transmitted for d seconds transferred from the intercom 15 (if the first digit is “3”, the second digit, the third digit) Since the sensor information registration data is previously registered in the sensor information registration data, the sensor information registration data is collated with the input DTMF signal “320” that is intermittent for d seconds. Thus, it is determined that the temperature in the elevator car 21 was 20 ° C. The reporting device 11 transmits information indicating the determination result that the temperature in the elevator car 21 is 20 ° C. to the maintenance center 12 via the public network 13.

  Next, the case where the sensor 4 installed in the elevator motor control unit 14 is an analog value input sensor for measuring the rotation speed of the elevator motor will be described.

  When the maintenance staff at the maintenance center 12 wants to know the rotation speed of the elevator motor, a command signal instructing the transfer of the measurement result of the rotation speed of the elevator motor from the maintenance center 12 is sent via the public network 13 to the notification device 11. Make a call to. When the notification device 11 receives the command signal from the maintenance center 12, the notification device 11 processes the received command signal, and transmits the DTMF from the speaker of the interphone 15 in the elevator car 21 via the wired line 35. The frequency sound of the signal “4” is output for a predetermined time e seconds (for example, 1 second).

  The e-second DTMF signal “4” output from the speaker of the intercom 15 is input to the microphone of the sensor 4 installed as a sensor for measuring the rotational speed of the elevator motor in the elevator motor control unit 14. In the processing unit built in the sensor 4 for measuring the rotational speed of the elevator motor, the frequency sound and the duration of all the DTMF signals inputted to the microphone as the instruction signal are displayed as the instruction signal. It is registered in advance as registration data. Therefore, since the instruction signal for the sensor 4 DTMF signal “4” that has been input to the microphone and that has been input to the microphone is previously registered in the instruction signal registration data, the sensor 4 has been input with the instruction signal registration data. By comparing with the DTMF signal “4” that lasts e seconds, it is determined that an instruction to return the rotation speed of the elevator motor has been received.

  Since the voltage corresponding to the rotation speed of the elevator motor is output from the elevator motor control unit 14, the analog input value sensor of the sensor 4 measures the output voltage output from the elevator motor control unit 14. As the measured motor rotation speed notification signal, for example, when the output voltage is 3V, the DTMF signal is “43”, and when the output voltage is 5V, the DTMF signal is “45”. DTMF signal of frequency sound proportional to the output voltage from the built-in speaker as an intermittent sound for a fixed time f seconds (for example, the first digit number is turned on for 1 second and then turned off for 1 second, then the second digit number) Is output for 1 second). Here, the first digit of the two-digit number string of the DTMF signal serving as the motor rotation speed notification signal is the sensor information of the analog input value sensor for measuring the motor rotation speed. 4 ″ and the second digit number indicates the output voltage of the elevator motor control unit 14 measured as a voltage according to the motor rotation speed.

  For example, the DTMF signal “43” output from the microphone of the sensor 4 intermittently for f seconds is input to the microphone of the intercom 15 installed in the elevator car 21. The intercom 15 transfers the DTMF signal “43” intermittently input for f seconds to the reporting device 11 via the wired line 35.

  The reporting device 11 uses the sensor information for measuring the motor rotation speed of the sensor 4 as the DTMF signal “43” which is intermittent for f seconds transferred from the intercom 15 (if the first digit is “4”, the second digit number). Information indicating that the output voltage of the elevator motor control unit 14 is registered in advance in the sensor information registration data. Therefore, the sensor information registration data and the DTMF signal “43” intermittently input for f seconds have been input. To determine that the sensor information of the sensor 4 is the output voltage 3V of the elevator motor control unit 14, and performs a process of converting it to a motor rotation speed corresponding to the output voltage 3V. Thereafter, the notification device 11 transmits the rotation speed of the elevator motor converted from the output voltage 3V to the maintenance center 12 via the public network 13.

(Configuration example of reporting device)
Next, an example of the internal configuration of the notification device 11 shown in FIG. 1 will be described with reference to FIG. FIG. 2 is a block configuration diagram illustrating an example of an internal configuration of the notification device 11 illustrated in FIG. 1. As shown in FIG. 2, the reporting device 11 includes a control unit 11a, a memory 11b, a clock IC 11c, a USB interface unit 11d, an Ethernet interface unit 11e, an RS-232C interface unit 11f, an RS-485 interface unit 11g, a PHS module 11h, The circuit unit includes a modem unit 11i, a PB transceiver unit 11j, a level detection unit 11k, a hands-free IC 11l, a speaker amplifier 11m, and a call button detection unit 11n.

  The control unit 11a controls the entire reporting device 11 and includes a CPU, a GA (gate array), and the like that process various signals. The memory 11b stores a control program for executing basic operations of the reporting device 11, a terminal ID, a local phone number, system data for registering frequency sounds of DTMF signals from various sensors, that is, sensor information registration data, and the like. . The clock IC 11c is a part that generates a clock signal for control to each circuit unit and clocks clock information.

  The USB interface unit 11d includes a USB controller IC and the like, and is an interface for connection with a USB terminal. The Ethernet interface unit 11e includes an Ethernet controller IC and the like, and is an interface for configuring an Ethernet LAN. The RS-232C interface unit 11f includes a RS-232C driver IC and the like, and is a one-to-one connection type serial transmission interface. The RS-485 interface unit 11g includes an RS-485 driver IC and the like, and is a multipoint connection type serial transmission interface.

  A PHS (Personal Handyphone System) module 11h is used when the public network 13 is a PHS network, and is a module that enables data communication or a telephone call based on a PIAFS (Personal Handyphone System Internet Access Forum Standard) standard by a radio signal. Yes, the controller 11a performs serial transmission and is controlled by AT commands.

  The modem unit 11i is a modulation / demodulation circuit used when the public network 13 is an analog network and performs data communication via the analog network. The modem unit 11i performs serial transmission with the control unit 11a and is controlled by an AT command. . The PB transceiver unit 11j is a circuit for transmitting and receiving a DTMF signal, that is, a frequency signal and a call progress tone. The level detection unit 11k is defined as High when the audio signal level input to the PB transceiver unit 11j or the hands-free IC 11l is equal to or higher than a predetermined reference value, and Low when the audio signal level is lower than the reference value, to the control unit 11a. It is a circuit to output.

  The hands-free IC 11l is an IC for enabling a hands-free call, and has functions such as gain control of transmission / reception data, an echo canceller, and a noise canceller. The speaker amplifier 11m is a circuit that amplifies a DTMF signal, that is, a frequency signal or an audio signal output to the speaker of the interphone 15 installed in the elevator car 21. The call button detection unit 11n is a circuit that detects ON / OFF of the call button 16 installed in the elevator car 21.

  In addition, as described above, in some cases, the notification device 11 further includes a speaker and a microphone for directly transmitting / receiving DTMF sound to / from various sensors (sensor 1, sensor 2, sensor 3, sensor 4). It can also be configured to include.

(Example of sensor configuration)
Next, an example of the internal configuration of the sensor 1 shown in FIG. 1 will be described with reference to FIG. FIG. 3 is a block configuration diagram showing an example of the internal configuration of the sensor 1 shown in FIG. 1. Except for the internal configuration of the sensor unit 1e, other various sensors (sensor 2, sensor 3, sensor 4) are exactly the same. It is a configuration. As shown in FIG. 3, the sensor 1 includes a control unit 1a, a memory 1b, a clock IC 1c, an RS-232C interface unit 1d, a sensor unit 1e, a PB transceiver unit 1f, a speaker amplifier 1g, a speaker 1h, and a microphone 1i. And a battery 1j.

  The control unit 1a controls the entire sensor 1, and includes a CPU, a GA (gate array), and the like that process various signals. The memory 1b stores a control program for executing the basic operation of the sensor 1, a sensor ID, system data for registering the frequency sound of the DTMF signal input from the notification device 11 via the interphone 15, that is, instruction signal registration data, and the like. Has been. The clock IC 1c is a part that generates a clock signal for control to each circuit unit and clocks clock information.

  The RS-232C interface unit 1d is a one-to-one connection type serial transmission interface including an RS-232C driver IC and the like. In the case of the sensor 1 that is a contact sensor, the sensor unit 1e is a part that detects ON / OFF of the monitoring target.

  The PB transceiver unit 1f is a circuit for transmitting and receiving a DTMF signal, that is, a frequency signal and a call progress tone. The speaker amplifier 1g is a circuit that amplifies a DTMF signal output to the built-in speaker 1h, that is, a frequency signal or an audio signal. The microphone 1 i is a part for inputting a DTMF signal from the interphone 15. The battery 1j is a built-in power source that enables the operation of transmitting and receiving the frequency sound of the DTMF signal by driving the speaker 1h and the microphone 1i.

(Example of internal operation of the reporting device and sensor)
Next, an example of the operation of each circuit unit inside the notification device 11 shown in FIG. 2 and the sensor 1 shown in FIG. 3 will be described.

  The reporting device 11 monitors the state of the elevator car 21 and the elevator hoistway 22 with various sensors during normal operation, and reports data to the maintenance center 12 via the public network 13 when an abnormality is detected.

  When the call button 16 in the elevator car 21 is pressed, the call button detection unit 11n is turned on, and the notification device 11 uses the terminal ID, the car number, the elevator number, etc. as a call button press signal to the public network. 13 to the maintenance center 12. Upon receiving a call button press signal including a terminal ID, a car number, an elevator number, etc., the maintenance center 12 transmits a reception completion signal to the notification device 11, and the notification device 11 that has received the reception completion signal receives the elevator car. A voice path is established for connecting the interphone 15 in 21 to the maintenance center 12 via the reporting device 11 and the public network 13. When the voice path is opened, a conversation between the passenger in the elevator car 21 and the maintenance staff of the maintenance center 12 becomes possible.

  In the notification device 11 of FIG. 2, a sensor information request command signal (for example, 1 to several digit DTMF signal) from the maintenance center 12 is sent to the notification device 11 via the public network 13 such as a PHS network or an analog network. When received by the PHS module 11h or the modem unit 11i, the PB transceiver unit 11j is controlled by the I / O port of the control unit 11a such as a CPU, and DTMF signals for various sensors are generated and output. The generated DTMF signal is gain-adjusted by the hands-free IC 11l, transferred from the wired line 35 to the interphone 15 in the elevator car 21 via the speaker amplifier 11m, and the DTMF signal is transmitted from the speaker of the interphone 15. The

  The DTMF signal input to the microphone 1i of the sensor 1 shown in FIG. 3 is determined as a DTMF signal by the PB transceiver unit 1f, and the I / O port between the control unit 1a such as a CPU is controlled. The control unit 1a such as a CPU refers to the DTMF registration information in the memory 1b, that is, the instruction signal registration data, determines the received instruction signal, and acquires the sensor information corresponding to the instruction signal in the sensor unit 1e. The control unit 1a such as a CPU controls the PB transceiver unit 1f so as to generate a DTMF signal corresponding to the acquired sensor information, and transmits a DTMF signal from the speaker 1h via the speaker amplifier 1g.

  The DTMF signal input from the sensor 1 to the microphone of the interphone 15 in the elevator car 21 is transferred to the PB transceiver unit 11j of the reporting device 11 through the wired line 35, and is controlled by the PB transceiver unit 11j. Processing is performed so as to control the I / O port with the unit 11a.

  The control unit 11a such as a CPU analyzes the DTMF signal from the PB transceiver unit 11j and transmits the analysis result to the maintenance center 12 from the PHS module 11h or the modem unit 11i via the public network 13. When a reception end signal (for example, a several-digit DTMF signal) is returned from the maintenance center 12 that has received the analysis result, the reporting device 11 returns to a normal operation state.

  The operation examples of FIGS. 2 and 3 have been described in detail above, but the USB interface unit 11d, the Ethernet interface unit 11e, the RS-232C interface unit 11f, and the RS-485 interface unit 11g are directly related to the present invention. This is a circuit part that is not present and is well known to those skilled in the art, and therefore will not be described in detail here.

  In the above description, transmission / reception of information between various sensors (sensor 1, sensor 2, sensor 3, sensor 4) and the reporting device 11 is a DTMF signal, but other audible signals are used instead of the DTMF signal. A frequency or an inaudible frequency may be used.

  In addition, in the transmission and reception of information between various sensors (sensor 1, sensor 2, sensor 3, sensor 4) and the notification device 11, not only the continuous sound that continuously outputs a DTMF signal for a predetermined time, but also the temperature As in the case of the sensor 3 of the sensor or the sensor 4 of the sensor for measuring the rotational speed of the motor, the case where it is output as an intermittent sound that is intermittent for a certain period of time is also used, but depending on the case, in either case Alternatively, it may be a continuous sound output continuously for a certain time. For example, regarding the sending of sensor information (output voltage measurement result of the elevator motor control unit 14) of the sensor 4 which is a sensor for measuring the motor rotation speed, if the output voltage is 3V, instead of the DTMF signal “43” described above In addition, after the DTMF signal “4” is turned on for 3 seconds and then turned off for 1 second, and the output voltage is 5 V, the DTMF signal “4” is turned on for 5 seconds instead of the DTMF signal “45”. You may make it output continuously for the duration proportional to an output voltage so that it may be OFF for 1 second.

  Further, although various sensors (sensor 1, sensor 2, sensor 3, sensor 4) and four sensors have been described, any number (n: positive integer) of sensors may be used. Further, the sensor may be a smoke detector, a weight sensor, or the like as well as a contact and an analog value input.

(Explanation of effect of embodiment)
As described above in detail, in the present embodiment, the following effects can be achieved.

  The first effect is that by limiting the sensor information from various sensors and the instruction signals to the various sensors to be wireless, it is possible to greatly reduce the restrictions on the sensor installation location.

  The second effect is that the maintenance worker's sensor installation / wiring work is unnecessary, so that the maintenance worker's fall accident in the elevator hoistway 22 can be reduced.

  The third effect is that, by wirelessly transmitting sensor information from various sensors and instruction signals to the various sensors, it is possible to greatly reduce the work time of maintenance workers for installing and wiring the sensors. .

The configuration of the preferred embodiment of the present invention has been described above. However, it should be noted that such examples are merely illustrative of the invention and do not limit the invention in any way. Those skilled in the art will readily understand that various modifications and changes can be made according to a specific application without departing from the gist of the present invention. For example, the embodiment of the present invention can be expressed as the following configuration in addition to the configuration (1) in the means for solving the problems.
(2) When the notification device instructs the sensor to transfer sensor information of the sensor, the notification device generates a frequency sound of a DTMF signal corresponding to the transfer instruction and connects to the notification device via a wired line The output from the speaker of the interphone, the sensor is provided with a microphone for inputting the frequency sound of the DTMF signal, receives the frequency sound of the DTMF signal from the interphone, and transfers instructions corresponding to the frequency sound of the received DTMF signal (1) The sensor information reporting system according to (1), wherein the sensor information is detected based on the DTMF signal, the frequency sound of the DTMF signal corresponding to the detected sensor information is generated and output from the speaker.
(3) In a sensor information reporting system including a reporting device that receives sensor information from a sensor that detects a state of a monitoring target and reports a processing result to an external device, the sensor is provided with a DTMF (Dual Tone Multi Frequency) ) A speaker that outputs a frequency sound of a signal is provided, sensor information of the sensor is output as a frequency sound of a DTMF signal from the speaker, and the notification device includes a microphone that inputs the frequency sound of the DTMF signal to the notification device. A sensor information reporting system that receives the frequency sound of the DTMF signal from the sensor by the microphone and transmits the result of processing the sensor information corresponding to the frequency sound of the received DTMF signal to the external device.
(4) The notification device includes a speaker that outputs a frequency sound of a DTMF signal to the notification device, and when the sensor information transfer instruction of the sensor is instructed to the sensor, a DTMF signal corresponding to the transfer instruction A frequency sound is generated and output from the speaker included in the notification device, and the sensor includes a microphone that inputs a frequency sound of the DTMF signal, receives the frequency sound of the DTMF signal from the notification device, The sensor according to (3), wherein sensor information is detected based on a transfer instruction corresponding to the frequency sound of the received DTMF signal, a frequency sound of the DTMF signal corresponding to the detected sensor information is generated, and output from the speaker. Information reporting system.
(5) The sensor according to any one of (1) to (4), further including an internal power source for driving the microphone and / or speaker provided in the sensor to input / output the frequency sound of the DTMF signal. Any sensor information reporting system.
(6) As a frequency sound of a DTMF signal transmitted and received between the sensor and the notification device or the intercom connected to the notification device via a wired line, a continuous sound that is continuous for a predetermined time and / or predetermined The sensor information reporting system according to any one of (1) to (5) above, wherein the intermittent sound is intermittent during a certain period of time.
(7) Information transmitted / received between the sensor and the notification device or the interphone connected to the notification device via a wired line is replaced with frequency sound of a radio signal in a predetermined frequency band instead of frequency sound of a DTMF signal. The sensor information reporting system according to any one of (1) to (6) above, wherein
(8) A sensor information reporting system for elevators that implements the sensor information reporting system according to any one of (1) to (7) above as a monitoring system for monitoring the operating state of the elevator.
(9) In a sensor information reporting method for receiving sensor information from a sensor that detects a state of a monitoring target by a reporting device and reporting the processing result to an external device, the sensor information detected by the sensor from the sensor The DTMF signal frequency sound corresponding to the DTMF signal is generated and output as wireless information, and the notification device that has received the DTMF signal frequency sound from the sensor processes the sensor information corresponding to the received DTMF signal frequency sound. Sensor information reporting method for transmitting the result of the measurement to the external device.
(10) When instructing the sensor to transfer the sensor information of the sensor, the reporting device generates a frequency sound of the DTMF signal corresponding to the transfer instruction and outputs it as wireless information. , Receiving the frequency sound of the DTMF signal from the notification device, detecting sensor information based on a transfer instruction corresponding to the frequency sound of the received DTMF signal, and detecting the frequency sound of the DTMF signal corresponding to the detected sensor information (9) The sensor information reporting method according to the above (9), which generates and outputs as wireless information.

It is a system configuration figure showing an example of a system configuration of a sensor information reporting system by the present invention. It is a block block diagram which shows an example of an internal structure of the notification apparatus shown in FIG. It is a block block diagram which shows an example of the internal structure of the sensor shown in FIG. It is a system configuration | structure figure which shows the system configuration | structure of the conventional sensor information reporting system for elevators.

Explanation of symbols

1 Sensor 1a Control unit 1b Memory 1c Clock IC
1d RS-232C interface unit 1e sensor unit 1f PB transceiver unit 1g speaker amplifier 1h speaker 1i microphone 1j battery 2 sensor 3 sensor 4 sensor 1A sensor 2A sensor 3A sensor 4A sensor 11 reporting device 11A reporting device 11a control unit 11b memory 11c clock IC
11d USB interface unit 11e Ethernet interface unit 11f RS-232C interface unit 11g RS-485 interface unit 11h PHS module 11i Modem unit 11j PB transceiver unit 11k Level detection unit 11l Hands-free IC
11 m Speaker amplifier 11 n Call button detection unit 12 Maintenance center 13 Public network 14 Elevator motor control unit 15 Interphone 16 Call button 21 Elevator car 22 Elevator hoistway 31 Wired line 32 Wired line 33 Wired line 34 Wired line 35 Wired line

Claims (10)

In the sensor information reporting system equipped with a reporting device that receives sensor information from the sensor that detects the status of the monitoring target and reports the processed result to an external device,
The sensor includes a speaker that outputs a frequency sound of a DTMF (Dual Tone Multi Frequency) signal, generates a frequency sound of a DTMF signal corresponding to sensor information detected by the sensor, and outputs the frequency sound from the speaker.
The notification device receives the frequency sound of the DTMF signal from the sensor by a microphone of an interphone connected to the notification device via a wired line, transfers the frequency sound of the DTMF signal from the sensor via the wired line, and receives the received DTMF signal. The result of processing sensor information corresponding to the frequency sound of is sent to the external device,
The sensor information reporting system, wherein the sensor represents the sensor information by a combination of a frequency sound of the DTMF signal and a duration of the frequency sound. When the notification device instructs the sensor to transfer sensor information of the sensor, the notification device generates a frequency sound of a DTMF signal corresponding to the transfer instruction, and the interphone connected to the notification device via a wired line Output from the speaker,
The sensor includes a microphone that inputs a frequency sound of a DTMF signal, receives a frequency sound of a DTMF signal from the intercom, and detects sensor information based on a transfer instruction corresponding to the frequency sound of the received DTMF signal. The sensor information reporting system according to claim 1, wherein a frequency sound of a DTMF signal corresponding to the detected sensor information is generated and output from the speaker. As a signal sound to be transmitted / received between the sensor and the intercom connected to the notification device via a wired line, a frequency sound of a DTMF signal or a frequency sound of a radio signal in a predetermined frequency band is continued for a predetermined period of time. 3. The sensor information reporting system according to claim 1, wherein the sensor information reporting system is used as a continuous sound and / or an intermittent sound that is intermittent for a predetermined time. In the sensor information reporting system equipped with a reporting device that receives sensor information from the sensor that detects the status of the monitoring target and reports the processed result to an external device,
The sensor includes a speaker that outputs a frequency sound of a DTMF (Dual Tone Multi Frequency) signal, and sensor information of the sensor is output as a frequency sound of a DTMF signal from the speaker.
The notification device includes a microphone that inputs a frequency sound of a DTMF signal to the notification device, receives the frequency sound of the DTMF signal from the sensor by the microphone, and receives sensor information corresponding to the frequency sound of the received DTMF signal. Send the processed result to the external device;
The sensor information reporting system, wherein the sensor represents the sensor information by a combination of a frequency sound of the DTMF signal and a duration of the frequency sound. The notification device includes a speaker that outputs a frequency sound of a DTMF signal to the notification device, and when the sensor information transfer instruction of the sensor is instructed to the sensor, a frequency sound of the DTMF signal corresponding to the transfer instruction is output. Generate and output from the speaker provided in the notification device,
The sensor includes a microphone for inputting a frequency sound of a DTMF signal, receives the frequency sound of a DTMF signal from the notification device, and detects sensor information based on a transfer instruction corresponding to the frequency sound of the received DTMF signal The sensor information reporting system according to claim 4 , wherein a frequency sound of a DTMF signal corresponding to the detected sensor information is generated and output from the speaker. As a signal sound to be transmitted and received between the sensor and the notification device, a frequency sound of a DTMF signal or a frequency sound of a radio signal in a predetermined frequency band, a continuous sound that is continuous for a predetermined time, and / or The sensor information reporting system according to any one of claims 4 to 5, wherein the sensor information reporting system is used as an intermittent sound that is intermittent during a predetermined period of time. The said sensor is further provided with the internal power supply for driving the said microphone and / or speaker with which the said sensor was provided, and inputting and outputting the said signal sound. Sensor information reporting system. 8. An elevator sensor information reporting system, wherein the sensor information reporting system according to claim 1 is implemented as a monitoring system for monitoring an operating state of an elevator. In the sensor information reporting method of receiving sensor information from the sensor that detects the state of the monitoring target by the reporting device and reporting the processed result to the external device,
The notification device that has generated the frequency sound of the DTMF signal corresponding to the sensor information detected by the sensor from the sensor and outputs it as wireless information, and has received the frequency sound of the DTMF signal from the sensor, A result of processing sensor information corresponding to a frequency sound of a signal is transmitted to the external device, and the sensor is configured to combine the sensor information with a combination of the frequency sound of the DTMF signal and the duration of the frequency sound. A sensor information reporting method characterized by representing. The notification device generates a frequency sound of a DTMF signal corresponding to the transfer instruction and outputs it as wireless information when instructing the sensor to transfer the sensor information of the sensor, and the sensor outputs the notification information. The frequency sound of the DTMF signal from the device is received, the sensor information is detected based on the transfer instruction corresponding to the frequency sound of the received DTMF signal, and the frequency sound of the DTMF signal corresponding to the detected sensor information is generated. 10. The sensor information reporting method according to claim 9, wherein the sensor information notification method is output as wireless information.

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