JP2001357482A - Measurement control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sensor system by infrared ray communication. SOLUTION: This measurement control system arranged in a house 1 is constituted of a sensor unit 3 provided with a fire sensor 2, the sensor unit 5 provided with a temperature sensor 4, the sensor unit 7 provided with a human detection sensor 6, a reception unit 8, a gathering device 9 for gathering measurement information, an AC 100 V power line 10, a communication cable 11 and a setting device 30 for setting the sensor units 3 and 5 by the infrared ray communication.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention performs measurement in a limited space such as indoors, transmits the measurement result to a receiving unit by infrared communication, and the receiving unit connects the received measurement information to a power line. The present invention relates to a measurement control system intended to be stored in a collection device.

[0002]

2. Description of the Related Art At present, in order to transmit information of various sensors scattered in a house to a collection device such as a computer, a sensor and a computer are connected by a communication cable, or a wireless transceiver is installed in the sensor and the computer. However, a method of communicating with the wireless transceiver is used.

[0003]

However, when connecting the sensor and the computer with a communication cable, wiring work is required. In particular, if the sensor and computer are in different rooms or one of them is outdoors, construction such as drilling holes in the wall to route the communication cable is also required, so installation takes a long time. However, there is a problem that the cost is high.

When the sensor and the computer communicate with each other by radio waves, it is necessary to provide a high-priced radio transceiver for each, and the radio waves are easily leaked to the outside of the house. There is a problem from.

Further, when communication is performed between the sensor and the computer only by infrared rays, there is a problem that the sensor can be used only in the same room where the infrared rays reach.

The present invention has been made in view of such a problem, and does not require wiring of communication cables or construction work for buildings, does not require expensive equipment such as a wireless transceiver, and has privacy. It is an object of the present invention to provide a measurement and control system that is advantageous for ensuring security and maintaining security.

[0007]

In order to solve the above-mentioned problems, a measurement control system according to a first aspect of the present invention comprises a sensor and infrared communication means for communicating measurement information measured by the sensor to another device. A power line having a sensor unit provided, and an infrared communication means for communicating with the sensor unit, having a program for processing measurement information of the sensor, and communicating with other information devices connected to the power line by power line carrier communication A receiving unit having a carrier communication unit, and a collecting device having a built-in program for managing information of the receiving unit and the sensor unit, and a power line carrier communication unit for communicating with the receiving unit via the power line. It is characterized by the following.

According to a second aspect of the present invention, there is provided the measurement control system according to the first aspect, wherein the sensor unit has address information so that a plurality of the sensor units are provided for the reception unit. It is characterized by connecting.

According to a third aspect of the present invention, there is provided a measurement control system comprising:
In the measurement control system according to any one of claims 1 and 2, a plurality of reception units are installed in the same room by providing the reception units with address information.

According to a fourth aspect of the present invention, there is provided a measurement control system comprising:
4. The measurement control system according to claim 1, wherein the sensor unit operates only a measurement information acquisition function and stops a microprocessor function and an infrared reception function, and acquires the measurement information. A function and a microprocessor function and a way cup state capable of operating the infrared communication function,
When the state of the measurement information shows a predetermined change in the sleep state, the state change is made to the way cup state, and the obtained measurement information is transmitted to the receiving unit by the infrared communication means. And

According to a fifth aspect of the present invention, there is provided a measurement control system according to the first aspect.
4. The measurement control system according to claim 3, wherein the sensor unit operates only the infrared communication function and stops the microprocessor function and the measurement information acquisition function, and acquires the measurement information. A function and a microprocessor function and a way cup state capable of operating an infrared receiving function, and when a processing request by infrared communication is received from the receiving unit in the sleep state, in response to the processing request, Performing a state change from the sleep state to the way cup state, and acquiring the measurement information by the measurement information acquisition function, and then transmitting the acquired measurement information to the receiving unit by the infrared communication means. Features.

According to a sixth aspect of the present invention, there is provided a measurement control system comprising:
In the measurement control system according to any one of claims 1 to 5, the distance between the sensor unit and the reception unit is:
It is characterized in that infrared communication and wired communication can be mixed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A measurement control system according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view of a first embodiment of the present invention, wherein a measurement control system disposed in a house 1 includes a sensor unit 3 having a fire sensor 2,
A sensor unit 5 having a temperature sensor 4, a sensor unit 7 having a human detection sensor 6, a receiving unit 8,
It comprises a collection device 9 for collecting measurement information, an AC 100 V power line 10, a communication cable 11, and a setting device 30 (see FIG. 2) for setting the sensor units 3, 5 by infrared communication.

The sensor unit of this system is installed in a place where wiring is difficult in the house 1 or in a place where new wiring is not desired. In this measurement control system of the infrared communication system, a maximum of 22
Five sensor units can be connected, and a maximum of 225 units constitute one group.

Further, this group of sensor units includes:
A maximum of three groups can exist in the same room or the like where infrared rays reach (can be installed not only indoors but also passages and outdoors). The wavelength of the transmission and reception infrared rays and the carrier wave frequency of each group are the same, and the identification of the group and the sensor unit is performed by a program.

The sensor unit of this system has a 2-bit jumper switch, and has a normal mode, a TEST mode, a setting mode, and a detachment mode according to the setting of the jumper switch.

In the normal mode, the sensor unit transmits ID information for itself to be recognized by the receiving unit 8 to the receiving unit 8, and then sends measurement data of a normal operation to the receiving unit 8.

The TEST mode is an operation mode of the normal mode, and is transmitted with an event disable flag when the state of the sensor changes for TEST. The receiving unit 8 can rewrite data of each sensor unit of the receiving unit 8 itself.

The setting mode is a mode in which communication with the setting device 30 is possible. In this setting mode, an ID for each sensor is set by setting from the setting device 30.

In the erasing mode, when the erasing switch provided on each sensor unit is pressed, the sensor unit that has pressed the erasing switch leaves the receiving unit 8 from the control of the receiving unit 8 by its own ID.

At the time of transition to the normal mode, the sensor unit transmits self-information indicating whether it can respond to a data transmission request or not, and whether it has participated in a group. When the sensor unit changes to the erasing mode in which the sensor unit leaves the group, the information is sent to the receiving unit 8, and the receiving unit 8 determines that there is a sensor unit in the erasing mode.

The ID of the sensor unit becomes address information in infrared communication, transmission line carrier communication, and communication of an external communication network. In addition, since infrared sensors provided in each sensor unit include a type that transmits binary data of ON / OFF and a type that transmits analog data, the ID of the sensor unit is such that the sensor detects binary data. It also serves as discrimination information of type or analog data detection type. When two sensors are connected to the sensor unit, the sensor unit has two IDs for specifying the sensors.

A sensor for detecting binary data is, for example,
There are human detection, magnet switch, limit switch, micro switch, earthquake detection, fire detection and others. Two types of binary data detection sensors can be connected to one sensor unit, and they are driven by batteries.

A sensor for detecting analog data converts quantitative data such as temperature, humidity, and illuminance into binary data and expresses the data. One sensor unit can be connected to two types of analog sensors, and a battery. Driven by

The receiving unit 8 is connected to the power line 10 of AC100V, and transmits measurement data from each sensor unit having an infrared communication function to the collection device 9 by the power line communication method. .

The setting unit 30 is used to set the ID of each sensor unit, is used only at the time of installation or system change, and performs infrared communication with the sensor unit in the setting mode. <Binary Data Type Sensor Unit> Next, the sensor unit 3 which is an example of the binary data type sensor unit will be described. The sensor 2 of the sensor unit 3 is of a type that detects binary data.

The sensor unit 3 is, as shown in FIG.
An infrared light receiving section 13 as an infrared communication section 12, an infrared light emitting section 14, a sensor 2, a microprocessor 15 for controlling the sensor 2, the infrared communication section 12 and the entire sensor unit 3, and a battery 16 as a power supply; And has a sleep state and a way cup state.

The sleep state of the sensor unit 3 is a state in which only the sensor 2 is activated and the functions of the microprocessor 15 and the infrared communication means 12 are stopped. In addition, the way cup state is a state in which the function of acquiring measurement information from the sensor 2 and the microprocessor 15 and the infrared communication unit 12 are activated. Sensor unit 3
Indicates that sensor 2 is turned on from OFF in sleep state
When a predetermined change, such as a change from ON to OFF, is indicated, power is supplied to the microprocessor 15 and the infrared communication means 12 to change the state to the way cup state.
The microprocessor 15 transmits the measurement information obtained by the sensor 12 to the receiving unit by the infrared communication unit 12.

The sensor 2 is a binary data detection sensor for detecting a fire, for example, a thermistor or a smoke detection sensor. The sensor 2 constantly monitors abnormal high temperature, smoke, and the like. When the measured temperature rises above a predetermined allowable temperature or when the measured smoke concentration exceeds an allowable limit, a fire is notified. As described above, the threshold value is set for the detection temperature or the detection concentration.

The sensor 2 supplies power from the battery 16 to the microprocessor 15 and the infrared light emitting unit 14 and the infrared light receiving unit 13 when the detected temperature or the detected concentration exceeds the threshold value. With this power supply, the sensor unit 3 makes a state transition from the sleep state to the way cup state. The microprocessor 15 is connected to the power supply by the way cup of the sensor unit 3, changes the state to the way cup, receives the detection data from the sensor 2, and outputs an infrared light emission signal including the received detection data to the infrared light emitting unit 14. Then, the infrared light emitting section 14 emits light.

Although the sensor unit 3 can still drive the microprocessor 15 and the infrared communication means 12, even if the battery 16 drops to such an extent that it cannot be driven after a predetermined period of time, the sensor unit 3 can be operated. 3 is changed from the sleep state to the way cup state.

In order to cause the sensor unit 3 to make a state transition due to a drop in the battery 16, a circuit for detecting a drop in the voltage of the battery 16 is provided, and when the current flowing through this circuit falls below a predetermined voltage, the battery 16 and the microprocessor 15 and the infrared communication means 12 are connected.

When the state transitions to the way cup state, the sensor unit 3 activates the microprocessor 15 and transmits to the receiving unit 8 that the battery 16 has reached the end of its life from the infrared communication means 12.

When the microprocessor 15 wakes up, as described above, the microprocessor 15 captures the state of the sensor 2 and the battery voltage of the battery 16, and uses the control code indicating the control content, the sequence number indicating the number of times of transmission of the detection data, and the transmission source. The ID code of a certain sensor unit 3 and the ID code of the receiving unit 8 on the receiving side are added to the data of the transmission content, and the infrared light emitting unit 13 emits light.

After that, the sensor unit 3 waits for an acknowledgment signal (hereinafter abbreviated as Ack signal) from the receiving unit 8.

The infrared light receiving section 14 receives the infrared light from the light receiving unit 8, the microprocessor 15 analyzes the data contained in the received infrared light, and is an Ack signal for the data transmitted by the sensor unit 3 itself. When it is recognized, the sensor unit 3 enters the sleep state again.

Here, when the sensor unit 3 does not receive the Ack signal for a certain period of time, for example, when the receiving unit 8 does not respond, the same signal is transmitted again (re
try), waiting for infrared light reception, A from the receiving unit 8
It waits for the ck signal. The waiting for the Ack signal again is repeated N times, and the sensor unit 3 enters the sleep state after N times.

The sensor unit 3 is also put into a sleep state by transmitting a setting command to the sensor unit 3 from a setting device capable of infrared communication.

When the retry command is repeated N times and there is no Ack signal for the retry from the receiving unit 8, the fire detection data is lost. However, when the fire detection data is received by the receiving unit 8 when the next state change of the sensor 2 occurs, a sequence number indicating the number of times the fire detection data has been transmitted is added to the transmission data. The unit 8 can determine that there is detection data that has not been received, and can find out whether there is a failure in the receiving unit 8 or the sensor unit 3 or a factor that blocks infrared rays.

Further, by setting a jumper switch of the sensor unit 3, infrared light output from the receiving unit 8 to the sensor unit 3 in the sleep state is received to change the state of the sensor unit 3 from the sleep state to the way cup state. It is also possible for an information terminal accessed via a communication line outside the house to check whether there is binary data such as a fire.

As described above, the sensor unit 3 notifies the receiving unit 8 that a fire has occurred by infrared communication, and the receiving unit 8 transmits the data provided to the power meter via the AC 100 V power line 10 by power line transport. The collection device 9 is notified of the fire information, and the collection device 9 can notify the cell phone or information terminal of the user or a monitoring center (not shown) such as a fire department or a security company by radio waves. <Analog sensor unit 5> Sensor unit 5
Is an infrared light receiving section 18 as infrared communication means 17,
It has an infrared light emitting section 19, a temperature sensor 4, a microprocessor 20 for controlling the temperature sensor 4, the infrared communication means 17, and the entire sensor unit 7, and a battery 21 as a power supply.

The sensor unit 5 has a sleep state in which only the infrared light receiving unit 18 is activated and power supply to the microprocessor 20 and the temperature sensor 4 is stopped, and the temperature sensor 4, the microprocessor 20 and the infrared communication unit 17 And a way cup state capable of operating the communication function by supplying power to the power supply.

In the sleep state of the sensor unit 5, when the infrared light receiving section 18 receives a processing request by infrared communication from the receiving unit 8, the temperature sensor 4, the microprocessor 20, and the infrared The power is supplied to the communication unit 17 and the state changes from the sleep state to the way cup state.

The temperature sensor 4 is an analog sensor for measuring the temperature in the room, and has an interface for measuring the temperature and converting the temperature information into digital data. Output to

When the microprocessor 20 wakes up, the microprocessor 20 fetches the temperature data detected by the temperature sensor 4 and outputs a control code indicating the contents of control, an ID code of the sensor unit 5 as a transmission source, and an ID of the reception unit 8 as a reception side. The code is added to the data of the transmission content, the infrared light emitting unit 19 emits light, and the acquired measurement information of the temperature sensor 4 is transmitted to the receiving unit 8. After causing the infrared light emitting unit 19 to emit light, the microprocessor 20 changes the entire sensor unit 5 to the sleep state again.

On the other hand, the receiving unit 8 retries N times when there is no reply for a certain period of time even after outputting the temperature measurement command, and when there is no reply from the sensor unit 5 even after N tries, A signal indicating an abnormality is transmitted to the collection device 9.

As described above, the sensor unit 5 measures and notifies temperature information according to the temperature measurement command sent via the receiving unit 8, and the receiving unit 8 transmits power via the power line 10 via the AC 100 V power line 10. The temperature information in the room is notified to the collection device 9 for data collection provided in the meter, and the collection device 9 can report to the user's mobile phone or information terminal by radio waves. <Cable communication type sensor unit> Sensor unit 7
Has a pyroelectric sensor 6 for human detection, a pyroelectric sensor 6, a microprocessor 22, and a battery 7A as a power supply. The sensor unit 7 is connected to the receiving unit 8 via the communication cable 11. The sensor unit 7
May include an infrared light emitting unit and an infrared light receiving unit for performing optical communication with the receiving unit 8.

The pyroelectric sensor 6 is an infrared detection sensor that detects infrared rays emitted by a human body. The pyroelectric sensor 6 detects infrared rays emitted from a human body when a person is present in a predetermined area (part or all of the room) in the room, and when the detected amount of infrared rays is equal to or more than a predetermined amount, the sensor unit 3. Similarly, the microprocessor 22 changes the state from the sleep state to the way cup state, and when the human detection output of the pyroelectric sensor 6 continues for a predetermined time,
It determines that there is a person in the room and outputs it to the receiving unit 8.

The sensor unit 7 is connected to the receiving unit 8 by a communication cable 11, and receives a human detection command issued from the monitoring center, a mobile phone or an information terminal via the collecting device 9 and the receiving unit 8. And receive. Upon receiving the human detection command, the sensor unit 7 operates the pyroelectric sensor 6 to detect the presence or absence of a person, and outputs the detection result via the receiving unit 8 and the collection device 9 to
It is possible to reply to the requestor.

Each of the microprocessors 15, 20,
Reference numeral 22 includes a ROM and a RAM, and batteries 16, 21, and 2
3 is supplied with power.

Each sensor unit 3, 5, 7 is stored in the ROM.
A program for performing the entire input / output operation and data processing, a data processing program, a communication program, and ID information of each of the sensors 2, 4, and 6 are stored. RAM is a sensor 4, a temperature sensor 4, a pyroelectric sensor 6
Are used to store the detected data and to hold the processing request received by the infrared communication unit 10 and the response transmitted.

The receiving unit 8 includes the sensor units 3 and 5
Infrared communication means 25 comprising an infrared light emitting section 23 and an infrared light receiving section 24 for performing infrared communication with the power supply, a transceiver 26 for power line carrier communication for performing power line carrier communication with indoor and outdoor power lines, a sensor unit 7 and a communication cable 11, infrared communication means 25, transceiver 26 and microprocessor 2
7 and a power supply 28 composed of an AC / DC converter for supplying power to other peripheral devices in the receiving unit 8.

The transceiver 26 performs power line carrier communication between the microprocessor 27 and the collection device 9 connected to the AC 100 V power line.

The microprocessor 27 has a ROM / RAM and an input / output interface in addition to the CPU. It has a program for transmitting and receiving to and from the collection device 9.

The setting unit 30 includes the sensor units 3, 5, 7
This is a device that communicates one by one with an infrared light emitting unit 31, an infrared light receiving unit 32, a microprocessor 33, a 7-segment display 34, a keypad 35, and an ACDC power supply 36.

In the setting mode of the sensor units 3, 5, and 7 by operating the keypad 35 of the setting device 30, the setting device 3
While infrared light including a setting command output from 0 can be received, communication with the receiving unit 8 becomes impossible. The data configuration at the time of this setting is different from the data configuration between the receiving unit 8 and the sensor units 3, 5, and 7, and the IDs of the transmission source and the transmission destination at the time of measurement are not used.

The setting unit 30 transmits an ID setting command to the sensor unit when in the setting mode. When the sensor unit receives the setting command, the sensor unit registers the ID and outputs an Ack signal indicating the reception. The setter 30 receives the Ack signal, displays the contents of the ID on the 7-segment display 34, and determines whether the ID matches the transmitted ID. Further, the setter sets the ID of the 7-segment display 34 and the I received from the sensor unit.
D can be confirmed.

The setting unit 30 is also capable of transmitting an information request command other than the ID setting (for example, a request for current information), and the sensor unit provides the requested information in response to this command.

The setting unit 30 has a function of monitoring infrared communication, and displays the monitoring function on the 7-segment display 34.

The collecting device 9 is composed of a computer installed inside the watt-hour meter installed on the outer wall of the house or the like, in a case integrated with the watt-hour meter, or in another case.

The collection device 9 comprises a commercially available personal computer or microcomputer, an external storage device such as a floppy (registered trademark), an HDD or a flash memory, or a display, and a communication for performing power line carrier communication at home. And a modem capable of communicating information with an external communication network, a network card, a TA, and the like, and operate with a commercially available OS. The external communication network refers to, for example, the Internet, a LAN, a WAN, or another network system, and the telephone includes wired and wireless.

In the external storage device, a communication program, a measurement control program, etc., and each of the sensor units 3, 5, 7,
And a program having a control command and a measurement data collection command. When the external information terminal is authenticated by the collection device 9, the sensor units 3, 5, 7
It is possible to see and control the measurement information of

An example of a program having a control command for the units 3, 5, and 7 and a command for collecting measurement data is as follows:
A virtual machine object in which operation instructions and state information of the sensor units 3, 5, and 7 are programmed in a distributed object language or the like, and an interface object for connecting the virtual machine object to an external information terminal can be given. When the collection device 9 is configured in this manner, the sensor unit 3 from the external information terminal,
It is possible to control 5 and 7 and to collect measurement information.

[0065]

According to the measurement control system of the present invention, since a communication cable is not used, it is possible to measure a place remote from an outlet, and it is possible to measure a hole in a building or the like. Since the construction work such as opening is unnecessary, the aesthetic appearance of the building is not impaired.

Further, it is possible to provide a measurement control system that does not require expensive equipment such as a wireless transceiver and is advantageous for securing privacy and maintaining security.

According to the measurement control system of the second aspect, by providing the sensor unit with address information, by connecting a plurality of sensor units to the receiving unit, various types of measurement information can be detected.

According to the measurement control system of the third aspect, by providing the receiving unit with address information, by installing a plurality of receiving units in the same room, it is possible to obtain more various measurement information. it can.

According to the measurement control system of the fourth aspect, since the sensor unit has the sleep state and the way cup state, power is saved.

In particular, according to the measurement control system of the present invention, it is possible to observe information on the interior of a room or the like in response to a request from an external information terminal.

According to the measurement control system of the sixth aspect, since a mixture of the infrared communication and the wired communication is possible between the sensor unit and the receiving unit, a wide variety of measurements can be performed.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a measurement control system according to an embodiment of the present invention.

FIG. 2 is a conceptual diagram of a sensor unit and a receiving unit of FIG.

[Explanation of symbols]

 2, 4, 6 sensor 3, 4, 7 sensor unit 8 receiving unit 9 collection device

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Koji Ohno 2-5 Marunouchi, Takamatsu City, Kagawa Prefecture Inside Shikoku Electric Power Company (72) Inventor Yasunobu Kashiwagi 2-5 Marunouchi, Takamatsu City, Kagawa Prefecture Shikoku Electric Power Company (72) Inventor Kenichiro Hosobu 2-5 Marunouchi, Takamatsu City, Kagawa Prefecture Inside Shikoku Electric Power Company (72) Inventor Mayo Imamura 2-5 Marunouchi, Takamatsu City, Kagawa Prefecture F-term in Shikoku Electric Power Company (72) Reference) 2F073 AA26 AB01 BB01 BB08 BC01 BC04 CC03 CC12 CD00 DD07 DE07 DE13 EE11 EF09 FG01 FG02 FH07 GG01

Claims (6)

[Claims] 1. A sensor unit comprising: a sensor; and infrared communication means for communicating measurement information measured by the sensor to another device; and infrared communication means for communicating with the sensor unit.
A receiving unit having a program for processing the measurement information of the sensor and having a power line carrier communication means for communicating with another information device connected to the power line by power line carrier communication; and information on the receiving unit and the sensor unit. A measurement control system, comprising: a collection device that includes a power line carrier communication unit that communicates with the receiving unit via the power line, the program including a program for managing the power unit. 2. The measurement control system according to claim 1, wherein a plurality of said sensor units are connected to said reception unit by providing said sensor units with address information. 3. The measurement control system according to claim 1, wherein a plurality of receiving units are installed in the same room by providing the receiving units with address information. system. 4. The measurement control system according to claim 1, wherein the sensor unit operates only a measurement information acquisition function and stops a microprocessor function and an infrared reception function. A way cup state capable of operating the acquisition function of the measurement information, the microprocessor function, and the infrared communication function, and when the state of the measurement information shows a predetermined change in the sleep state, the way Make a state change to the cup state,
A measurement control system, wherein the acquired measurement information is transmitted to the receiving unit by the infrared communication means. 5. The measurement control system according to claim 1, wherein the sensor unit operates only the infrared communication function and stops the microprocessor function and the measurement information acquisition function. State and a way cup state capable of operating the measurement information acquisition function and the microprocessor function and the infrared receiving function, and when there is a processing request by infrared communication from the receiving unit in the sleep state, In response to this processing request, the state was changed from the sleep state to the way cup state, and the measurement information was acquired by the measurement information acquisition function, and then acquired by the infrared communication means to the reception unit. A measurement control system for transmitting the measurement information. 6. The measurement control system according to claim 1, wherein a mixture of infrared communication and wired communication is possible between the sensor unit and the receiving unit. Measurement control system.